Built to thrive in demanding enduro terrain, the M8200 crank arms combine trail-tough durability with refined pedaling performance. Shimano’s Hollowtech II cold-forged construction maximizes stiffness and strength without unnecessary weight, while the robust 24mm spindle and 55mm chain line offer wide compatibility and confident power transfer. Available in 160–175mm lengths and designed to pair with SM-CRM86 direct-mount chainrings, they’re ready for personalized setups across disciplines.
Features:
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HOLLOWTECH II Construction: Cold-forged alloy arms deliver the ideal mix of low weight, high rigidity, and trail-ready strength.
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Versatile Fit & Compatibility: The 24mm spindle works with Shimano’s threaded and Press Fit bottom brackets, while the 55mm chain line offers clearance for modern frame designs.
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Optimized Q-Factor: Balanced for both enduro and XC riders, the tuned Q-factor promotes a natural, efficient pedal stroke.
Specs:
M8200 Enduro Crank Arms
| Model: | Deore XT M8200 |
| Model ID: | FC-M8200 |
| Crank Arm Length: | 160mm, 165mm, 170mm, 175mm |
| Chainline: | 55mm |
| Q-Factor: | 176mm |
| Spindle: | 24mm |
| Crank Arm Material: | Aluminum |
| Chainring: | Not Included |
| Drive Config: | 1x |
| Weight: | TBD |
Works With:
The Shimano XT M8200 Crank Arms are backward compatible with previous generation Shimano 12-speed chainrings and drivetrains. Compatible models include: XTR M9100 and M9200, Deore XT M8100, SLX M7100, and Deore M6100.
XT Crank Arms are compatible with the following:
| Chainring: | Shimano direct mount chainrings: CRM75, CRM85, CRM86, CRM95, CRM96 |
| Bottom Bracket: | Shimano Hollowtech II Bottom Brackets: XTR, Deore XT |
| Pedal: | All 9/16" pedals |
Please reach out to us with any questions you may have on anything we sell. We want to make sure you get the right items the first time. Our lifelong riders at Thunder Mountain Bikes are knowledgeable and would love to talk to you!
Shipping
We currently offer both economy and expedited shipping options through FedEX and USPS.
Most orders totaling over $59 are eligible to ship for free via an economy ground option of our choice.
Due to larger box sizes, handlebars and other oversized items will have an additional shipping fee.
Most bikes ship free within the continental US. Bike shipping to AK, HI, or PR is available at an additional charge depending on the exact delivery location.
If you're in need of something super-quick, please contact us directly. We may be able to overnight your order with an additional fee depending on your location.
RETURNS
Should there be an issue with the item you bought, or you no longer need your purchase, we will be happy to set up a return.
Component & Gear Returns
Returns may be requested within sixty (60) days of the delivery date. All returned items must be received in new, unused, and uninstalled condition, with the original tags and labels attached and in the original packaging. We cannot accept returns on any items installed or show wear of any kind.
Bike Returns
Returns or exchange requests for bikes must be requested by emailing us at sedona@thundermountainbikes.com within fifteen (15) days from the date of delivery. Bikes must be in un-ridden condition. Custom-built bikes may not be returned. Returned bikes have a $200 restocking fee and the customer pays for return shipping.
Return Shipping
Customers may choose to use our provided flat-rate return shipping label at $9, or choose a carrier of their choice to handle their product return.
The $9 flat rate label will be deducted from the refund issued for the return. You can either print this label after requesting a return from the Order History in your Account profile, or you can request that we email you the label.
For all other return shipping methods, please email us at sedona@thundermountainbikes.com after submitting your return request so that we can confirm the shipping information you should use to return your item(s).
REFUNDS
We will process your return after we receive your returned item(s) and inspect the condition. Please allow at least seven (7) days from the receipt of your item to process your refund. We will notify you by email when your return has been processed.
EXCEPTIONS
If you receive defective or damaged products or if we sent you the wrong products, please contact us using the phone number or email below.
RETURN PROCESS
To request a return, please log in to your customer account by clicking the 
Profile icon in the top right of any page or visit account.thundermountainbikes.com.
1. In the Email field, enter your email address and click Continue.
2. In your email account, open the email sent from our store and copy the six-digit verification code included in the email.
3. Go back to the online store and enter a six-digit verification code to log in.
4. Find and click on the order you want to submit a return for.
5. If your order has more than one item, select only the items you want to return.
6. Select a return reason and add a note for the store if needed.
7. Click Request Return.
Once your return request is approved, you will receive an email with shipping instructions and a return shipping label.
QUESTIONS ABOUT RETURNS?
If you have any questions concerning our return policy, please contact us at:
