We’ll make this a great experience

It’s our mission to provide you with world-class hospitality every time you visit us online or in-store. We’ll always take care of you. It’s the Trek way.

Awesome free shipping options

All accessory orders over $49 ship to your home for free, and all accessory orders ship free to your local retailer for in-store pickup.

30-day Unconditional Guarantee

If for any reason you’re not 100% happy with your online order from trekbikes.com, you can return it in like-new condition within 30 days. No questions asked.

Learn more

Bontrager Comp 31.8 7 Degree Blendr Stem

Model 567623

The Bontrager Comp 31.8 stem is Blendr ready and provides a secure and confident connection to 31.8 handlebars for road, city, and mountain bikes.

Product details

6061-T6 cast body construction
4-bolt dual band clamp retains stiffness and reduces weight
Opposing 2-bolt steerer tube clamp with M5 corrosion resistant steel bolts
Blendr ready for seamless accessory integration
Compatible with Blendr Comp & Legacy Elite bases and mounts, sold separately
Suitable for use on a road, city, or mountain bike
Safe for use on carbon steerer tubes and handlebars

Get all your favorite apparel from over 80 of the world's best cycling brands delivered right to your doorstep or local Trek retailer when you shop our curated online collection. If you're not 100% satisfied, you can return your purchase within 30 days for a full refund.

Shop all gear

Get an inside look at how the company got its' name, why it decided to start it's life in a barn, and more!

Planet Earth is our home and our responsibility —we must do our part to preserve it. Learn how you can join the #GoByBike movement and help make a difference in the future of our planet and all who call it home.

Wondering how to properly fit that new helmet you just got? Need some tips on how to ride with your kids? How about ways to be more visible to cars? We've got that and a whole bunch more!

Learn more

Trek culture is who we are, what matters to us, and what we do as a brand. Take a look behind the scenes at Trek’s global headquarters.

There's a lot more to Trek than making the world's best bikes and cycling gear. Learn more about everything Trek is doing to make the cycling space safer, more inclusive, plus a whole lot more fun.

1of3

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

Size	7 deg. x 35mm	7 deg. x 60mm	7 deg. x 70mm	7 deg. x 80mm	7 deg. x 90mm	7 deg. x 100mm
Rise	7 deg.	7 deg.	7 deg.	7 deg.	7 deg.	7 deg.
Length	35mm	60mm	70mm	80mm	90mm	100mm
Steerer outer diameter	28.6mm (1-1/8")	28.6mm (1-1/8")	28.6mm (1-1/8")	28.6mm (1-1/8")	28.6mm (1-1/8")	28.6mm (1-1/8")
Clamp	31.8mm	31.8mm	31.8mm	31.8mm	31.8mm	31.8mm
Type	Threadless	Threadless	Threadless	Threadless	Threadless	Threadless
Accessory compatibility	Not applicable	Blendr	Blendr	Blendr	Blendr	Blendr
Material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum
Weight	104g	137g	154g	168g	183g	199g

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Prices shown are manufacturer's suggested retail prices.

Weights are based off pre-production products at time of publication. Weights may vary in final production.