Dirt Jump Bikes

Fast shipping, color as stated, happy guy here

I went with the new XX Eagle Transmission crankset with power meter. I was mixing with SRAM Eagle AXS transmission (derailleur, chain, cassette, shifter) so purchased the Wolftooth chainring in a “0” mm offset to keep the chain line right (3mm offset chainring comes with w new Transmission crankset and T-type drivetrain). The o mm offset shifts like a charm. Power is accurate. Moved from 175 to 170 crank arm length and love the entire set up. Customer service was great. Got advised on the chain ring purchase.

Shipped fast and packaged well im stoked

Good price
Would buy again .

Good price, great products

It’s really hard to find smaller size cranks to fine tune your build,I’m 5,5 so with the smaller frames coming with 170 cranks this 155mm cranks are a game changer thank you

Great pads! I love the compatibility charts for the components! Fast shipping!

Love a new cassette, especially one of this caliber.

Awesome set of wheels. With excellent customer service and shipping was super fast.
Thanks Thunder Mountain

Hard to find part delivered quickly, Plus free swag ! .

Fast shipping and easy ordering. Great product at an awesome price.

Orders some parts and the parts arrived on time!!!

Allowed me to replace existing 40mm adapter with this 20mm adapter to fit 200mm rotors on Manitou Mastodon fat bike fork. However, bolts were too long, so had to visit local hardware store to remedy. Bummer, the multicolor bolts in the kit look sharp. I'll have to cut down to size so I can use them. Probably add 2-3 mph to my avg speed... Found I had to use conical washers included with kit to center caliper with 20mm spacer. Could not install / center without these spacers.

Awesome bike for the trails I ride. Thunder mountain did a great job of keeping me informed of their process. Would definitely buy again from them in the future. Thank you!

quality and good price