Trek Adventure Triangle Bag

Overview

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Features

With a race-inspired design, this bag tucks behind the head tube to keep nutrition, tools and all your ride essentials within reach.

The Ultragrid™ outer material is lightweight, ultra durable and made of 100% recycled materials. The inside liner is also 100% recycled for a more sustainable storage solution.

The included hardware provides seamless, bolt-on integration for both the Checkmate SLR and Checkpoint SL Gen 3 gravel bikes – giving riders secure storage mounting and a clean aesthetic. Plus, finding the right bag size for your bike is easy with our compatibility guide.

The Trek Adventure Triangle Bag was designed to maximise the space you need to store your water bottles, so you can stay hydrated for the ride ahead.

Optimise your on-bike storage with a bag created with smaller frames in mind. The 1.0-litre triangle bag lets you store your ride essentials, without sacrificing the space needed for water bottles and other gear to keep your adventures going.

With our printout sizing options guide, you can easily find the right bag size for your bike, hassle-free. Simply print the guide from a standard printer and place it on your bike's frame to find the best size for your ride. If the bag measures between two sizes, choose the smaller size for optimal integration.

See the guide

Internal pockets help keep your gear safely stored and organised, on even the bumpiest routes, while the external pockets keep your gear within reach at a moment's notice.

If for any reason you’re not satisfied with a Bontrager or Trek aftermarket purchase, return the item, along with the original sales receipt to the original place of purchase within 30 days for an exchange or refund. Think of it as a 30-day test ride.

Learn more

Specs

Cargo capacity	1 l	1.3L	1.6L
Bag type	Frame bags	Frame bags	Frame bags
Dimensions	31cm (l) x 5.3cm (w) x 10.3cm (h)	31.2cm (l) x 5.3cm (w) x 14.8cm (h)	31.7cm (l) x 5.3cm (w) x 17.2cm (h)
Bag attachment type	Frame-mounted	Frame-mounted	Frame-mounted
Water resistant	Yes	Yes	Yes
Material	Knit	Knit	Knit
Weight	145g	160g	175g

Sizing Service

Reviews

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More options

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Responsibility

Race-ready storage

Recycled, durable material

Easy, bolt-on mounting for the Checkpoint and Checkmate

Made to maximise your hydration

Designed with smaller frames in mind

Find the right size, right at home

Stay organised, inside and out

30-Day Unconditional Guarantee