Based on 1633 reviews
XTR BL-M9120 Disc Brake Lever
John H. (Martinez, US)
Stiff, but very constraining on placement.

This lever/mc assembly appears as if it only requires about 17mm of bar width to mount. This is not the case. It really requires 43mm of bar width to mount. There is an additional boss on the back of the unit, which needs to contact the handlebar tube. This is done to stiffen up the assembly, which works very well. The angle of the photos that Shimano has chosen hides this boss. There needs to be a photo taken from the backside and/or top, so it can be seen. In my application I had to cut a 3 x 8mm hole in the front of the grip for the boss to go through. This uses up about 25mm of width of the grip that can no longer be used by your hands.

They are great

One ride on these and so far so good. Great modulation and no need to seat them.

Awesome delivery time , I’m in northeast Pa.
Plus I got an awesome sticker for the toolbox.
Hard to beat high end sram, but these folks at thunder mountain are giving them a run for the money
Thanks again

Palmela Handerson Grips
david W. (Colorado Springs, US)

Fast, reliable.

XX1 Eagle Chain
falllinemaniac (Telluride, US)
Better metals and machining isn't cheap

I was surprised how well the previous chain shifted. I was shocked how long it is lasting

XX1 Eagle XG-1299 Cassette
Ryan G. (Austin, US)

It looks even better in person. Thunder mountain always ships out quick with good packaging.

XX1 Eagle AXS Upgrade Kit
Jeff G. (Phoenix, US)
Always Awesome!

You can't go wrong with AXS. Way better than manual shifting.

SLX BR-M7120 Disc Brake Caliper
Customer (Golden, US)
Replacement caliper

Two of the pistons in my original rear brake caliper froze up, caused a scraping noise and reduced braking power. The BR-M7120 replacement (same as original) worked well

Original Tire Sealant
Arizona D.r. (Tucson, US)
Best sealant out there. Period.

Every time a ride thru a patch of cactus or pull a thorn from my MTB tire mid ride - I exclaim "Thank God for Stans!"

Great Brake pads

I use Hope E4 brakes and have been looking for a good set of enduro brake pads and these fit the bill.
I will order a second set

Men's Logo T-Shirt
Laurie (Canaan, US)
Great TShirt

Gave to husband as a gift and he likes it. He says it's soft and fits true to size.

A35 Stem
Rory (Denver, US)
I9 A35 50mm

Great stem. Nicely machined with great color. Thunder mountain top notch customer service. Went beyond expectation and provided real customer service! Thank you TM!

Level Silver Stealth Lever Blade
carlos a. (North Fort Myers, US)

It’s a good one

V2.1 Dropper Post Rebuild Kit
falllinemaniac (Telluride, US)
Easy Steezy

I eschewed the provided grease & used Wolftooth grease instead.

No seat wiggle anymore!

XX1 Eagle XG-1299 Cassette
Steve S. (Rio Rancho, US)
Smoovey shifting

Really nice upgrade from the eagle cassette that came with my new bike. I hope to get more that 600 miles from the xx1. Looks trick and shifts buttery smooth.

Shimano Crank Arm Protector Boots
Marty A. (Alpharetta, US)
OK, but...

These look fine, but aren't very snug on the crank arms. I noticed on both Shimano cranks that I have that these will slide down to the pedal spindle versus staying in place. Not a huge deal, but kind of stinks when they are sold as Shimano specific yet don't really fit well.

NX/GX Eagle Groupset
Von H.C. (Anchorage, US)
Great components

Upgraded my 2021 Trek Marlin 5 from Tourney to Sram NX/GX and it's a huge improvement. My bike got way lot smoother shifting and no more dropping chains. Thunder Mountain bikes is really thoughtful bundling this groupset together for customers' convenience. It's a pretty good deal too. Just remember to grab the SRAM dub BSA bottom bracket as well to go with this groupset. Shipping to Alaska took a while but it's definitely worth the wait. Will order from this company again for bike components in the near future

Men's Freerider Pro Flat Pedal Shoe
David L. (Marlton, US)
Love my 5 10’s!

These are great shoes. Order was super easy too. Fast shipping as well, only took a few days to arrive.

1/1 Freehub Kit
Julien (Newark, US)
Driver body replacement

Great part exactly as needed.

XTR Crank Arms
Sean H. (Doha, QA)
NTR 9130 Crank Arms

Great. Item was exactly as advertised on website. Fast delivery.

Icon Grips
John T. (Tampa, US)
Huge disappointment

I rarely leave a bad review for any product but I want to save other people from possibly wasting money on these grips. To say soft is one thing but to be a low quality soft plastic grip is something else. Unlike a rubber type compound like an ODI or renthol these are a soft plastic like grip. The single collar is usually something I like but the sleeve itself twists and rotates under your hand it felt like if you were to have a hard landing you could snap it off at the collar thankfully that didn't happen. I'm not somebody that's hard on my equipment but these grips just felt like a light duty xc grip at best. Hey if you like them enjoy what you like but I rode them for 2 hours and I couldn't wait to put my old grips back on. I'll stick with ODI or Renthal for now.

XX1 Eagle XG-1299 Cassette
L G. (Park City, US)
Great product, fast shipping

I'm redoing most of an older drivetrain, so it was great to see the wide selection of quality products, and the components arrived quickly. Thanks!

NX Eagle Chain
maddox P.

NX Eagle Chain

Highside 35mm Alloy Handlebar
Lindsey L. (San Antonio, US)
Deity Highside 35mm Alloy Handlebars

Th product quality and performance is outstanding. The transaction with Thunder Mountain was quick and efficient. Processing and shipping were error-free. That's the way it's supposed to be and I'm very happy all the way around. Thumbs up.