Seat Bags

Planet Bike's Little Buddy is the perfect friend to bring along on every ride. It's made of tough material and has a padded, white interior to protect, and make it easy to see your things. Its 44 cubic inches of capacity handle all your essentials. It's also got a diagonal zipper for easy access, a taillight strap (lights sold separately) and reflective piping for visibility.

Planet Bike's Big Buddy is the perfect friend to bring along on every ride. It's made of tough material and has a padded, white interior to protect, and make it easy to see your things. Its 80 cubic inches of capacity handle all your essentials. It's also got a diagonal zipper for easy access, a taillight strap (lights sold separately) and reflective piping for safety.

MSW's simple strap-mounted Brand New Bags come in three sizes so you can carry along your keys, phone, wallet or emergency repair kit--or whatever else you need to make your bike ride great. - Combination 600D polyester and 420D nylon outer with 210D Nylon lining - Simple strap and clip attachment - 3M reflective strip - Loop for clip-on lights - Small: 6.3 x 2.8 x 4.1" - Medium: 7.7 x 3.3 x 4.7" - Large: 7.5 x 3.9 x 5.3"

Free Your Pockets Why carry your tools yourself? Strap them to your bike and forget about them until you actually need them. Enough room for a CO2 cartridge, a small selection of tools + tire levers, and a spare tube. - Stretch hook-and-loop strap adjustment - Ripstop nylon construction - Printed silicone grip - Tri-fold design - 3 inner pockets

Compact holder for Tube and Tools. Separate compartments for tools, CO2 & tools so they won't fall out. Fits narrow and wide/big tubes.

The perfect balance between lightweight and capacity. Large enough to accommodate a spare inner tube, tire levers, multi-tool, a wallet, and keys. But compact enough for adventure. - Water resistant 1000D material with YKK zipper - Interior division for all your essentials - Reflective logo, webbing to clip light - Angled straps achieve a low profile fit - No-snag Velcro and Amara leather limit abrasion

Carry just the essential roadside/trailside tools with the MSW Tool Hugger. Sleeves are designed to fit tire levers, CO2, inflator, patch kit, multi-tool, and a tube (all sold separately). Works well standard saddle rails, or just toss it into a jersey pocket. - Durable Cordura outer layer - Seven elastic tool compartments - Hook and loop closures

While the Mini Tool Kit is the smallest bag in the Jandd line, it is still made to the same strict specifications as Jandd's largest mountaineering pack. - Perfect for minimalists; fits tube, tire levers and mini-tool - Three-point retention system - Main panel is doubled with an extra layer of nylon to prevent premature wear at the seat post - Seams are fully taped to prevent fraying - Made of Dupont Cordura - Weight: 40 grams - Capacity: 24 cubic inches

Aerodynamic seat bag holds tubes, tools and other repair items. Mounts with our innovative Quick Release Buckle system to fit all railed saddles. Specs: - BAG ATTACHMENT: Nylon straps / Buckle - MATERIAL: 1200 denier polyester - SEATPOST DIAMETER: Fits 27.2 - 34.9 mm - SIZE: 16 x 8 x 7.5 cm / 6.3" x 3.1" x 2.9" - CAPACITY: 0.41 L / 25 ci - WEIGHT: 85 g / 2.99 oz - ADDED FEATURES: 3M reflective strip, Safety light clip

Topeak's Wedge Pack II features a unique, positive locking mount that makes attaching and removing the pack a snap. The Wedge is great for carrying tubes, a C02 pump, wallet, keys and whatever else you need. For low-light conditions, a 3M reflective stripe adds safety and its 1000-denier, Teflon-coated construction makes the Wedge Pack durable and tough.

The perfect balance between lightweight and capacity. Large enough to accommodate a spare inner tube, tire levers, multi-tool, a wallet, and keys, but compact enough for adventure. - Water resistant 1000d material with YKK zipper - Interior division for all your essentials - Reflective logo, webbing to clip light - Angled straps achieve a low profile fit - No-snag Velcro and amara leather limit abrasion

The Tire Bag 2, with its rectangular main pocket and two zippered side pockets, is an excellent option for road or mountain bikers who need extra room. - Hook and loop at the seat post, and a 3/4-inch nylon strap provides an extremely stable mounting system - Designed to hold a tubular tire and tools, perfect to carry longer or larger tools - Can be mounted on the frame or under the saddle - Weight: 90 grams - Capacity: 84 cubic inches

Don't overstuff your jersey pockets. Simplify your load by putting your essentials in Topeak's Aero Wedge Pack. It straps neatly beneath your seat and is constructed of durable 1200-denier, Teflon-coated polyester with reflective strips and a taillight mount for nighttime safety.

The BiKASE Momentum family of saddle bags is the perfect complement to any ride. With a narrow and contoured design, the Momentum fits snugly between the seat post and saddle without interfering with the rider, and, with a double strap design, it couldn't be easier to install. Round that out with a taillight mount and reflective striping. - Reflective stripes - Internal mesh pocket - Internal elastic band - Strap light holder - Small: 25 cubic inches - Medium: 50 cubic inches - Large: 75 cubic inches - X-Large: 110 cubic inches (Black only)

A versatile bag designed to fit on handlebars or under the seat. - Reflective accents and webbing light holder. - Water-resistant zippers and oversized zipper pulls. - 4 3/4" x 8", 150 cubic inches

Plenty of room and durability to support you on epic rides. If being prepared is important the super cache can carry enough to accompany you on epic rides. - Water resistant 1000D material with YKK zipper - Interior division for all your essentials - Reflective logo, webbing to clip light - Angled straps achieve a low profile fit - No-snag Velcro and Amara leather limit abrasion

Roll-top waterproof pack bag that will keep your gear clean and dry. Made from waterproof recycled nylon fabric and designed to fit the Specialized/Fjällräven Seatbag Harness (art.no 23242). Valve to release air so contents can be compressed after the bag is closed. Part of the Specialized/Fjällräven series for urban rides and bikepacking adventures. - Roll-top closure and taped seams keep water out. - Light, waterproof fabric in 100% recycled nylon 210D. - Air-release valve for easy compression. - Note- Do not submerge. - 100% polyamide 210D

Don't overstuff your jersey pockets. Simplify your load by putting your essentials in Topeak's Aero Wedge Pack. It straps neatly beneath your seat and is constructed of durable 1200-denier, Teflon-coated polyester with reflective strips and a taillight mount for nighttime safety.

Carry just the necessities in Topeak's Micro Aero Wedge Pack. It's constructed of heavy-duty 1000-denier, Teflon-coated nylon and includes a handy quick-release mount that securely attaches the pack to your seat. And for nighttime safety, it features a 3M reflective strip and a taillight clip.

Carry all the necessities in Topeak's Aero Wedge Pack DX. It's constructed of heavy-duty 1000-denier, Teflon-coated nylon and it sports separate compartments for your mini tool and tube, and includes a handy quick-release mount that securely attaches the pack to your seat. And for nighttime safety, it features a 3M reflective strip and a taillight clip.

Topeak's Wedge Pack II features a unique, positive locking mount that makes attaching and removing the pack a snap. A rain cover is included, if you get caught in a storm; just cover the pack and your belongings will stay dry. The Wedge is great for carrying tubes, a C02 pump, wallet, keys and whatever else you need. For low-light conditions, a 3M reflective stripe adds safety and its 1000-denier, Teflon-coated construction makes the Wedge Pack durable and tough.

Key features: - Hook and loop saddle attachment firmly keeps bag connected to your bike - Low-profile seatpost attachment prevents bag from swinging while riding - Internal pockets securely hold credit cards and valuables - Loop on face of bag easily attaches clips for rear lights - Reflective elements enhance visibility for maximum safety anytime - Light and robust material holds up to elements without contaminating contents - 57 cu. in. (940cc) capacity

- Water resistant 1000D material with YKK zipper - Interior division for all your essentials - Reflective logo, webbing to clip light - Angled straps achieve a low profile fit - No-snag Velcro and Amara leather limit abrasion - Length: 9 in, Width: 5.1 in, Depth: 3.7 in - Volume: 68.5 cu in

Don't overstuff your jersey pockets. Simplify your load by putting your essentials in Topeak's Aero Wedge Pack. It straps neatly beneath your seat and is constructed of durable 1200-denier, Teflon-coated polyester with reflective strips and a taillight mount for nighttime safety.

Carry just the necessities in Topeak's Small Aero Wedge Pack. It's constructed of heavy-duty 1000-denier, Teflon-coated nylon and includes a handy quick-release mount that securely attaches the pack to your seat. And for nighttime safety, it features a 3M reflective strip and a taillight clip.

BiKASE's Wasp Saddle Bag is a durable, weather resistant case made of thermoplastic polyurethane with a waterproof zipper. The quick release mounting system fits regular seat rails and up to 10mm carbon rails. Interior mesh pocket, elastic band, and lining to keep contents organized. Plus, the Wasp is easy to clean because molded case does not absorb mud, dirt, or water. • Material: TPU • Size: 6 x 4 x 3 ½-inches • Volume: 37 cubic inches • Weight: 200 g • Rear light holder

A lightweight under-the-seat bag for carrying ride essentials. Every Seymour bag is created using Oceanweave – Axiom’s new lightweight and durable fabric made from reclaimed fishnet – to help reduce the amount of harmful plastics in our oceans. - Volume 0.5 L / 29 cu in - Weight 57g / 0.13 lbs - OCEANWEAVE 600D recycled fishnet polyester with waterproof polyurethane coating - Red interior liner improves internal visibility - Lightweight Velcro saddle mounting system can be cinched down to ensure a quiet load - Zippered flap opening for easy access to bag contents while bag is on bike - Interior ID pocket - Ultra-visible 3M triangle logo - LED light clip

Topeak's Tri DryBag keeps your gear dry no matter the weather. Composed of water-resistant fabric, this top tube pack sports a flap that folds over the opening and prevents water penetration. It attaches via hook-and-loop straps and you'll have plenty of room for carrying your phone, wallet, tools and energy bars in this streamlined bag.

Topeak's Wedge Pack II features a unique, positive locking mount that makes attaching and removing the pack a snap. A rain cover is included, if you get caught in a storm; just cover the pack and your belongings will stay dry. It's expandable, so you'll have plenty of room for carrying tubes, a C02 pump, wallet, keys and whatever else you need. For low-light conditions, a 3M reflective stripe adds safety and its 1000-denier, Teflon-coated construction makes the Wedge Pack durable and tough.

Carry just the necessities in Topeak's Medium Aero Wedge Pack. It's constructed of heavy-duty 1000-denier, Teflon-coated nylon and includes a handy quick-release mount that securely attaches the pack to your seat. And for nighttime safety, it features a 3M reflective strip and a taillight clip.

Carry all the necessities in Topeak's Aero Wedge Pack DX. It's constructed of heavy-duty 1000-denier, Teflon-coated nylon and it sports separate compartments for your mini tool and tube, and includes a handy quick-release mount that securely attaches the pack to your seat. And for nighttime safety, it features a 3M reflective strip and a taillight clip.

Topeak's Wedge Pack II features a unique, positive locking mount that makes attaching and removing the pack a snap. A rain cover is included, if you get caught in a storm; just cover the pack and your belongings will stay dry. It's expandable, so you'll have plenty of room for carrying tubes, a C02 pump, wallet, keys and whatever else you need. For low-light conditions, a 3M reflective stripe adds safety and its 1000-denier, Teflon-coated construction makes the Wedge Pack durable and tough.

A lightweight under-the-seat bag for carrying ride essentials. Every Seymour bag is created using Oceanweave – Axiom’s new lightweight and durable fabric made from reclaimed fishnet – to help reduce the amount of harmful plastics in our oceans. - Volume 0.8 L / 51 cu in - Weight 72g / 0.16 lbs - OCEANWEAVE 600D recycled fishnet polyester with waterproof polyurethane coating; Red interior liner improves internal visibility - Lightweight Velcro saddle-mounting system can be cinched down to ensure a quiet load - Zippered flap opening for easy access to bag contents while bag is on bike - Interior ID pocket - Ultra-visible 3M triangle logo - LED light clip

Pack for an ADVenture without adding a rear rack. The ADV Seat Bag easily fastens to the seat post and seat rails with Velcro straps for a secure fit. The backloading 5L storage compartment may be rolled up to adjust to a smaller volume. Waterproof zipper opening on the drive side for easy access to the main compartment without unrolling. Additional mesh pocket on non-drive side for storing smaller items. PU coated splash resistant Nylon body for all-weather use. - Fastens to saddle rail and seat post - Additional access to the main body (5L compartment) via a zipper on the drive side - May be rolled up to adjust volume - Mesh pocket with the zipper on the non-drive side - PU coated splash resistant 600 denier Nylon - Water-resistant polyurethane coating on all zippers - Fits 25.4 - 34.9mm seatposts - Capacity: 305 cu in (5L) - Dimension: 44cm (L) x 10cm (W) x 13cm (H) - Weight: 215g

Carry just the necessities in Topeak's Large Aero Wedge Pack. It's constructed of heavy-duty 1000-denier, Teflon-coated nylon and includes a handy quick-release mount that securely attaches the pack to your seat. And for nighttime safety, it features a 3M reflective strip and a taillight clip.

Long days in the saddle training and racing take their toll on your equipment. Tri-BackUp TireBag provides protection from harmful ultra violet rays that can quickly degrade a tubular tire. So the next time you have to replace your tubular tire, it’s ready to go. Designed to integrate with Tri-Backup Pro V and Tri-Backup Pro I for maximum aerodynamic efficiency. - Material: 420D nylon - Mount: Works w/ TRI-BackUP Pro V / Pro I; Top tube; Saddle rails - Compatibility: Up to 700 x 25c tubular tire (Max folded length 8.7 cm / 3.4”) - Round Tube Diameter: Fits 23/48 mm - Aero Tube: Fits up to 260 mm (10.2”) circumference - Added Features: Side pockets for up to four 16g CO2 cartridges Zipper docks - Size: 25.8 x 7.8 x 4.6 cm / 10.2” x3.1” x 1.3” - Weight: 107 grams

Topeak's SideKick Wedge Pack features a unique, positive locking 2-piece mount that makes attaching and removing the pack a snap. Its unique side-opening design makes accessing your gear quick and easy and you'll have plenty of room for carrying tubes, a C02 pump, wallet, keys and whatever else you need. For low-light conditions, a 3M reflective strip adds safety and its semi-rigid construction makes the Wedge Pack durable and tough.

A lightweight under-the-seat bag for carrying ride essentials. Every Seymour bag is created using Oceanweave – Axiom’s new lightweight and durable fabric made from reclaimed fishnet – to help reduce the amount of harmful plastics in our oceans. - Volume 1.3 L / 79 cu in - Weight 93g / 0.21 lbs - OCEANWEAVE 600D recycled fishnet polyester with waterproof polyurethane coating and a red interior liner to improve internal visibility - Lightweight Velcro saddle mounting system can be cinched down to ensure a quiet load - Zippered flap opening for easy access to bag contents while bag is on bike - Interior credit card / ID pocket - Ultra-visible 3M triangle logo - LED light clip

Easy access to your belongings with side opening. No more reaching way back and trying to find your stuff as compared to rear entry bags. External pockets for small items that sometimes get lost! Easy attachment with molded nylon T bracket and 2 hook & loop straps. Has 110 cubic inches of storage capacity and will even hold a windbreaker for those longer rides when the weather changes! Will hold a fat tire tube as well. Features: - 2 side pockets - 2 Teflon coating mesh pockets - Multiple compartment/mesh pockets - Webbing light holder/Rear reflective dots - PE stiffener structure - Universal-fitting T-bar mount - 2 Velcro straps for seat post mounting

Topeak's SideKick Wedge Pack features a unique, positive locking 2-piece mount that makes attaching and removing the pack a snap. Its unique side-opening design makes accessing your gear quick and easy and you'll have plenty of room for carrying tubes, a C02 pump, wallet, keys and whatever else you need. For low-light conditions, a 3M reflective strip adds safety and its semi-rigid construction makes the Wedge Pack durable and tough.

A convenient all-in-one pack containing useful tire-change essentials. Flats happen. Make sure you're prepared with a Bontrager Flat Pack. Featuring the storage, inflation, and tire removal equipment you need to handle an emergency flat repair, this purchase also includes a coupon for a free Bontrager tube so you can get the right size for your bike and tires. Product details - Kit features everything you need to quickly fix a flat, including the seat pack - Includes Pro Small seat pack (non-QC) for quick and easy on-bike storage - Contents include: mini pump, three tire levers, and patch kit - Also includes coupon for a FREE Standard Bontrager Presta or Schrader inner tube

The essential accessories that complement a new bike are key to having the best experience. MSW Ride & Repair Kits combine all those ride essentials into one convenient, money-saving package. Available in several configurations to meet the needs of different types of riding and different types of riders. - This Ride and Repair Kit provides everything needed to fix a punctured tire. The kit includes an eight-piece multi-tool, glueless tire patch kit, three tire levers, CO2 inflator & cartridges, and a seat bag to put it all in - 50 cubic inch seat bag with hook-and-loop mounting straps - Three MSW tire levers - Eight-piece flat-pack multi-tool with 2/3/4/5/6mm hex wrenches, T25 Torx, flathead & Philips screwdrivers - Glueless patch kit with six patches, sandpaper, instructions - AirLift mini frame pump with a large chamber, locking handle and carrying mount

The essential accessories that complement a new bike are key to having the best experience. MSW Ride & Repair Kits combine all those ride essentials into one convenient, money-saving package. Available in several configurations to meet the needs of different types of riding and different types of riders. - This Ride and Repair Kit provides everything needed to fix a punctured tire. The kit includes an eight-piece multi-tool, glueless tire patch kit, three tire levers, CO2 inflator & cartridges, and a seat bag to put it all in - 50 cubic inch seat bag with hook-and-loop mounting straps - Three MSW tire levers - Eight-piece flat-pack multi-tool with 2/3/4/5/6mm hex wrenches, T25 Torx, flathead & Philips screwdrivers - Glueless patch kit with six patches, sandpaper, instructions - Windstream Push-On CO2 inflator head - Two 20g CO2 cartridges

Carry the essential roadside/trailside tools with the MSW Tool Hugger Kit. The Kit includes all the basics for quick repairs: CO2 cartridges, inflator head, tire levers, mini tool, and patch kit. Bring along your own tube and roll them all up in the Tool Hugger Wrap, which attaches to standard saddle rails, or just toss it into a jersey pocket. - Durable Cordura outer layer - Seven elastic tool compartments - Hook and loop closures

The City Saddle bag is designed for any folding bicycle. Constructed from waterproof fabrics, it comes in two sizes to accommodate a range of gear like clothing, off-the-bike footwear, or tools. Both sizes are tape-sealed and completely waterproof. The bag also features an extendable bottom stabilising strap which fits easily around the suspension block on all Brompton bicycles. Handmade in our Yorkshire workshop, all bags are finished with the classic Restrap label, made from vegan-friendly PU. Weight - 110g Capacity - 1.2L - Bags designed specifically for use on folding bicycles - 100% handmade in Yorkshire England from vegan-friendly PU - Third-party online sales are strictly prohibited by the manufacturer All Restrap products carry a lifetime guarantee to be free of defects in materials and workmanship. We stand by our products and will cover the cost to repair or replace any defective product.

A high-volume under-the-seat bag and water bottle pocket designed specifically for the gran fondo cyclist. Every Seymour bag is created using Oceanweave – Axiom’s new lightweight and durable fabric made from reclaimed fishnet – to help reduce the amount of harmful plastics in our oceans. CONSTRUCTION - OCEANWEAVE 600D recycled fishnet polyester with waterproof polyurethane coating - Red interior liner improves internal visibility MOUNTING SYSTEM - Lightweight Velcro saddle-mounting system ADDED BENEFIT - Zippered flap opening for easy access to bag contents while bag is on bike - Interior credit card / ID pocket - Integrated waterbottle holder - Ultra-visible 3M triangle logo - LED light clip - Volume 1.3 L / 79 cu in - Weight 126g / 0.28 lbs

This wedge bag has two compartments with foam inserts to keep tools jiggle free. - Features durable 1000 denier, wrap-around zipper, extra-long 3M reflective strip for added safety at night and a zippered expanding main compartment for added storage. Mounts and removes quickly with the innovative QuickClick system. - Built-in rain covers and two-piece rail fixer for easy removal Tool Kit Includes: - 2, 3, 4, 5, and 6mm Allen wrenches - T25 Torx - Phillips screwdriver - 8 and 10mm open wrenches - Universal Chain Tool with chain hook - 2 Tire Levers - Flypaper Glueless Patch Kit

Listen to your inner voice of adventure. Pack up your gear, get on your bike, and ride that epic trail. BackLoader is a large-capacity seat bag specially designed for bikepackers providing a streamlined way to carry gear without the need for a rear rack. Constructed of lightweight, highly water-resistant and durable materials, it mounts and removes quickly. The upgraded saddle mount system, in conjunction with compression straps, reduces the pendulum effect associated with large rear payloads, providing a comfortable ride for those long miles. An easy-access waterproof inner bag is included to keep contents completely dry. - Polyethylene / Nylon — Lightweight, durable, water repellent and stain resistant - Hook and loop fastener - Waterproof Rating: 10,000mm (waterproof inner bag) - Max Load: 5kg / 11lb - Safety light clip - Air release button

- Waterproof - Reflective Elements - Mount for clip on light - Spacers for handlebar spacing - 9 Liters 700x315mm - 2.4 gallon 27.6x12.4in

A weather-resistant, bikepacking-inspired / urban-inspired seat pack bag with built-in accommodation for a U-lock. Ideal for the commuting trunk bag user who doesn't want to use a rack. - OCEANWEAVE 600D reclaimed fishnet polyester with waterproof polyurethane coating. - Water-resistant stitched construction. - Heavy-duty seat rail buckle and straps, pull up to tighten. - 3 rubberized, modular seatpost straps with CAMLOCK, ensure things stay tight, while eliminating potential damage to clothing. Can use 2 or 3, in varied positions. - Top mount bungee system with wings, provides optimum stability to top loads, etc... - Top bungee system for additional, flexible storage. - Supplemental rear closure strap system provides additional support. - Ultra-visible rear 3M triangle logo. - Polypropylene plates below saddle, ensure ample leg clearance, even if heavily loaded. - Built-in U-lock holder. - Rear light clip.

- Adventure ready saddle mounted removable drybag and holster system - Includes waterproof carry bag with air release valve to keep gear dry and compact - Bag easily slides in and out of holster without having to remove from bicycle - 15L measures 19.7

The EXP Series Seat pack keeps gear high, centered, and in line with you and your bike. Much like a dry bag or stuff sack, the EXP Series Seat pack fits a wide range of load sizes, and dutifully carries anything you need on your next two-wheeled mission. - Water-resistant welded construction with waterproof fabrics - Roll type closure and air purging valve that allows for managing overall volume - Stretch cord storage on top - Durable 1000D material strategically placed in high wear areas - Weight: 380g - Capacity: 6 – 14 Liters

- Adventure ready saddle mounted removable drybag and holster system - Includes waterproof carry bag with air release valve to keep gear dry and compact - Bag easily slides in and out of holster without having to remove from bicycle - 15L measures 19.7

Oceanweave 600D reclaimed fishnet polyester with waterproof polyurethane coating. - Heavy-duty seat rail buckle and straps pull up to tighten. - 3 rubberized modular seatpost straps with Camlock ensure things stay tight while eliminating potential damage to clothing. - Top mount bungee system with wings provides optimum stability to top loads etc. - Top bungee system for additional flexible storage. - Supplemental rear closure strap system provides additional support. - Ultra-visible rear 3M triangle logo. - Polypropylene plates below saddle ensure ample leg clearance even if heavily loaded. - Built-in U-lock holder and rear light clip.

We set out to create the most stable, low profile mounted, feature loaded, waterproof seat bag available. The Spinelock seat bag checks all the boxes. The Spinelock integrates user tested and approved features like a one-way air purge valve, rear light slots, loop and bungee deck, and an external plastic bottom with a new patented attachment system. Stability was the driving element in the design process. If you want something you can pack and forget, the Spinelock is your seat bag. There are two size options, neither of which sacrifice features for capacity. The smaller but largely versatile Spinelock 10L maximizes your carry with minimal tire clearance and provides a generous amount of waterproof storage with additional space on the external corded deck. . If you are going on a long expedition or carrying cold weather gear we recommend checking out the Spinelock 16L. How it works: - The Spinelock stability system consists of three components: the saddle clamp, seat bag mounted "Spine" baseplate, and pin. - A low profile, high strength, forged aluminum clamp works in combination with precision IGUS bushings to form the pin interface. Twin forged upper arms, fastened by Torx-25 bolts, rotate into position above the saddle rails for easy mounting. - Resembling a spine ramp familiar to skateboarders, the "Spine" baseplate is made of an impact resistant UV-stabilized nylon and is integrated to the seat bag surface. The plate features two mounting positions to accommodate seatpost setback and saddle adjustments. To connect the bag, you simply line up your selected mounting position to the seat mounted clamp and slide the pin through the aligned holes. Attaching the side compression straps to the wings of the clamp fixes the pin in place and you're ready to ride!