Terrapin System
Revelate Designs Terrapin System Review
Tested and reviewed for bikepacking use
The Terrapin uses Revelate's unique dry-bag-inside-a-harness design. The waterproof inner bag slides into a separate support harness, which means you can remove just the bag for easy packing at camp. The harness uses a seatpost clamp and saddle rail attachment to eliminate sway on rough terrain.
Who Is the Revelate Designs Terrapin System Best For?
Riders who value a removable, waterproof bag with excellent sway control. If that describes your riding style, the Terrapin System should be at the top of your shortlist. It sits in the Seat Bags category alongside 9other products we've reviewed.
How It Compares
At 380g and $160, the Terrapin System is 44g heavier than the lightest option in this category (the Apidura Backcountry Saddle Pack at 336g). The most budget-friendly option is the Topeak BackLoader 10L at $70.
The price-to-weight ratio comes in at $42 per 100g — a premium price point, but you're paying for quality, materials, and design that justify the investment for serious bikepackers.
What We Like
- +Removable inner bag makes packing convenient
- +Waterproof dry bag construction
- +Harness system virtually eliminates sway
- +14L capacity is right-sized for most trips
Watch Out For
- −Two-piece system is more complex to set up initially
- −Heavier than single-piece seatpacks
- −Inner bag can be fiddly to slide back into harness
The Bottom Line
The Revelate Designs Terrapin System earns a 4.3/5 rating. It's a solid performer that does most things well. Removable inner bag makes packing convenient is the standout feature, though two-piece system is more complex to set up initially is worth considering before you buy.
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