The Fox 36 Factory E-Optimized 29" Fork—the undisputed champion of all-mountain riding—now EMTB ready! Continuously dominating the all-mountain scene, the award-winning 36 boasts a reinforced chassis engineered to withstand the increased loads of eMTB and World Cup EDR-E racing. Available with both trail-focused GRIP X and gravity-focused GRIP X2 damper options.
SMOOTHER, STIFFER, MORE GRIP
The 36 sets the standard for all-mountain performance, delivering smoother suspension movement, increased stiffness, and enhanced grip on the trail. With unparalleled responsiveness and control, you will confidently tackle challenging terrain with ease.
GRIP X DAMPER
Trail and all-mountain riders no longer need to compromise between descent-focused performance and lightweight endurance. The GRIP X damper offers exceptional descent performance with refined weight savings, easier setup, and an accessible firm mode for efficient pedaling.
GRIP X2 DAMPER
The GRIP X2 damper is the pinnacle of descent-focused damping technology. Offering exceptional tunability, support, and smoothness, it ensures riders remain higher in the travel while maintaining optimal traction for cornering. This damper instills confidence to push the limits of downhill and enduro racing while minimizing rider fatigue.
KABOLT X AXLE
Featuring a lightweight bolt-on floating axle design, the Kabolt X enhances torsional stiffness while reducing weight. The innovative single-sided pinch bolt design ensures precise chassis alignment, minimizing friction for smoother suspension movement throughout the entire range of travel.
LOWER LEG BLEEDERS AND BYPASS CHANNELS
Equipped with bleeders for atmospheric pressure equalization and lower leg bypass channels to increase volume, the 36 delivers superior fork performance. These features enhance small bump sensitivity and responsiveness, providing a smoother ride on any terrain.
LOWER LEG ARCH
Designed to optimize stiffness and strength while minimizing weight, the lower leg architecture of the 36 meets the demands of enduro and aggressive all-mountain riding. Built to excel in challenging conditions, the 36 is ready to take on any trail.
Fox 36 Factory E-Optimized 29" Fork Specs:
| Model Year: | 2025 |
| Wheel Size: | 29" |
| Travel: | 160mm |
| Offset (Rake): | 44mm |
| Axle: | Kabolt X 110 |
| Upper Tube Finish: | Kashima Coat |
| Air Channels: | Yes |
| Bleeders: | Yes |
| Floating Axle: | Yes |
| Rotor Size: | 180 direct Post Mount, Up to 230 compatible |
| Mud Guard Mount: | Optional FOX 36/38 Mud Guard with sturdy 4-point direct-mount attachment |
| Air Spring: | FLOAT EVOL |
| Steerer: | 1.5 Taper |
| Adjustments: |
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| Starting Weight: | 1929g (36, 29, F-S, 160, Grip X, Kabolt X)* * Fork weights shown are at 165mm steerer length with star-fangled nut and disc brake guide installed. |
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 though FedEX and USPS.
Orders totaling over $59 are eligible to ship for free via an economy ground option of our choice.
Most bikes ship free within the continental US. Bike shipping to AK, HI, or PR is $250.
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 and 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 that 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:
