Built for the demands of modern trail and enduro riding, the Shimano XTR Di2 M9220 Enduro 12-speed drivetrain delivers next-level precision, power, and reliability with every shift. Centered around the ultra-durable, wireless M9250 Di2 rear derailleur, this kit combines intelligent shifting, rugged component design, and a compact, race-ready gear range optimized for aggressive trail performance.
What's Included:
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M9250 Di2 Rear Derailleur
Built to thrive in the toughest conditions, the Shimano XTR M9250 Di2 Rear Derailleur is the go-to choice for elite enduro racers and XC riders who demand reliability and low weight. -
CS-M9200 Cassette
Engineered for elite-level performance, the XTR CS-M9200 cassette represents the latest evolution of Shimano’s HYPERGLIDE+ technology. Redesigned tooth profiles deliver smoother, faster, and more precise shifting under load, making it ideal for racing and aggressive trail riding. -
XTR M9200 Crankset
Engineered for elite cross-country performance, the M9220 (Enduro) crankset embodies Shimano’s HOLLOWTECH II forged construction, balancing lightweight efficiency with uncompromising stiffness. -
M9250 Di2 Shifter
Shimano’s most ergonomic, adjustable shifter yet. Features customizable multi-shift modes, a programmable third button, and satisfyingly fast, tactile actuation. -
BT-DN320 Di2 Battery
Seamlessly integrated into the rear derailleur for protection, this 310mAh battery powers fast, consistent shifting in all trail conditions and is fully removable for charging. -
EC-DN100 Battery Charger
Compact and user-friendly, the EC-DN100 makes recharging quick and easy, ensuring your drivetrain stays ready for long days on the trail. -
CN-M9100 12-Speed Chain
Engineered for HYPERGLIDE+ drivetrains, this chain delivers fast, shockless shifting with unmatched chain retention and drivetrain efficiency.
Why XTR Di2 M9220?
This trail-focused Di2 drivetrain system brings wireless precision, intelligent gear selection, and rock-solid reliability to every ride. With a wide gear range, rugged construction, and Shimano’s smartest shifting to date, it’s built to meet the demands of modern mountain biking.
Specs:
Derailleur
| Model: | XTR M9250 |
| Model ID: | RD-M9250-GS (Mid Cage) RD-M9250-SGS (Long Cage) |
| Shift Technology: | Wireless |
| Communication Protocol: | Di2 |
| Max Tooth: | 38t |
| Drive Config: | 1x |
| Weight: | TBD |
Cassette
| Model: | XTR M9200 |
| Model ID: | CS-M9200-12 |
| Gearing: | 9-45t, 10-51t |
| Technology: | HYPERGLIDE+ |
| Cog Sizes: | 9-45t: 9-11-13-15-17-19-21-24-28-33-39-45t 10-51t: 10-12-14-16-18-21-24-28-33-39-45-51t |
| Installation Note: | 45t Requires the Shimano TL-LR21 Cassette Tool for installation. |
Crankset
| Model: | XTR M9220 |
| Crank Arm Model ID: | FC-M9220 |
| Chainring Model ID: | SM-CRM96 |
| Material: | Aluminum |
| P.C.D: | Direct |
| Chainline: | 55mm |
| Q-Factor: | 176mm |
| Chainring Teeth: | 28t, 30t, 32t, 34t, 36t, or 38t |
Shifter
| Model: | XTR M9250 |
| Model ID: | SW-M9250-R/IR |
| Shifter Type: | Wireless |
| Orientation: | Right |
| Clamp: | 22.2mm Band Clamp |
Chain
| Model: | XTR M9100 |
| Model ID: | CN-M9100 |
| Type: | HG |
| Rear Speeds: | 12 |
| Roller Link Plate: | Chromizing |
| Pins: | Hollow |
| # of links: | 126 |
| Weight: | 242g |
Compatibility
The Shimano XTR Di2 M9220 Enduro Drivetrain is 100% backwards compatible with your current Shimano 12-Speed cassette, crankset/chainring, and chain. Compatible models include: XTR M9100, Deore XT M8100, SLX M7100, and Deore M6100.
Medium cage derailleurs are compatible with 45t cassettes, and long cage derailleurs are compatible with 51t cassettes.
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:
