Relevate Designs Terrapin Seatpost Bag

Bikepacking saddle bag, Revelate Terrapin 8L and 14L, waterproof saddle bag, Indie-Rail System, ultra-lightweight bikepacking bag, VX21 X-Pac, 8-litre and 14-litre saddle bags, bikepacking accessories, Made in the USA.

The Revelate Terrapin seatpacks in 8 and 14 litres are among the most robust, waterproof bikepacking seatpacks on the market. Both systems combine a robust holster with a removable dry bag and utilise the exclusive Indie-Rail mounting system, which virtually eliminates side-to-side sway. The 3D-moulded, waterproof pack with an air release valve ensures optimal compression, whilst the rigid internal structure offers maximum stability on technical trails. The Terrapin 8L is ideal for lightweight set-ups and bikes with limited tyre clearance, whilst the Terrapin 14L offers extra volume for longer tours and expeditions. The perfect combination of durability, waterproofing and well-thought-out bikepacking design.

Technical Specifications – Terrapin® 8L (Revelate Designs)

• Volume: 8 litres
• Weight: 113 g
• Material: 210D urethane-coated VX21 X-Pac / Rhinotec
• Construction: fully waterproof, 3D-welded, welded seams
• Valve: Air release valve for compression
• Mounting system: Indie-Rail – side-mounted to the seat stays, minimises side-to-side sway
• Internal structure: rigid inner panels, composite top sheet, external plastic base protection
• Compatibility: ideal for bikes with limited tyre clearance, small frames, plus-sized bikes
• Manufacturing: Made in the USA
• Notes:
  • Not compatible with dropper posts
  • For soft, flexible items only
  • Hard edges (e.g. cookware) must be padded
  • Check tyre clearance when using full suspension travel
  • Contact with the tyre will cause damage (not covered by the warranty)

The Revelate Terrapin® 8L is an ultra-lightweight, waterproof saddle bag designed for modern bikepacking. Thanks to the innovative Indie-Rail system, the bag remains stable and virtually free from side-to-side sway, even on technical terrain. The 3D-welded pack sack with an air release valve allows for compact, secure packing – perfect for light to medium-duty tours, weekend trips and bikes with limited tyre clearance.

Weighing just 113 g and with a volume of 8 litres, the Terrapin 8L is ideal for small frames, 29ers, plus bikes and any set-up where maximum stability and minimal weight are crucial. The robust VX21-X-Pac construction, welded seams and rigid internal structure ensure durability and reliable performance – even on challenging trails.

Technical Specifications – Terrapin® 14L (Revelate Designs)

• Capacity: 14 litres
• Weight: 425 g (holster), 142 g (dry bag)
• Holster material: VX21 X-Pac, Rhinotec
• Drybag material: 200D TPU-laminated ripstop nylon, fully waterproof
• Construction: 3D-moulded, waterproof pack sack with heat-sealed seams
• Valve: Air release valve for compression
• Mounting system: Indie-Rail – side-mounted to the seat stays, eliminates lateral sway
• Internal structure: rigid plastic panels at the bottom and sides, composite top sheet
• Compression: 3:1 ratio on the lower side straps for high compression with minimal effort
• External protection: Plastic base plate acting as a ‘fender’ against stone chips and dirt
• Top: configurable bungee/strap system for additional external load
• Space requirements: min. 21.6 cm between tyres and seat stays; min. 12.7 cm seatpost extension
• Compatibility: not suitable for dropper posts; not compatible with Spocket accessory bag
• Manufacturing: Holster made in the USA; dry bag imported

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The Revelate Terrapin® 14L is the premium modular seatpack for demanding bikepacking. The system combines a robust holster with a removable, waterproof 14-litre drybag – ideal for efficient packing and quick access at camp. The latest generation offers noticeable improvements in stability, ease of use and durability.

The exclusive Indie-Rail system secures the bag to the sides of the seat stays, almost completely eliminating the typical side-to-side sway of large saddle bags. Together with the rigid internal structure, active cam buckles and the 3:1 compression system, the load remains secure and compact even on rough trails.

The 3D-moulded dry bag with an air release valve allows for perfect compression, whilst the external plastic base plate protects the pack like a mudguard against dirt and stone chips. The configurable bungee system on the top offers additional storage space for lightweight kit.

With a 14-litre capacity, high stability and maximum waterproofing, the Terrapin® 14L is the ideal choice for multi-day tours, expeditions and bikepacking set-ups with larger loads.