Fox Transfer Factory Dropper Post - Thunder Mountain Bikes
Fox Transfer Factory Dropper Post - Thunder Mountain Bikes
Fox Transfer Factory Dropper Post - Thunder Mountain Bikes
Fox Transfer Factory Dropper Post - Thunder Mountain Bikes
Fox Transfer Factory Dropper Post - Thunder Mountain Bikes

Transfer Factory Dropper Post

SKU: 925-01-142

Regular price $359.00 Sale price$269.00
Seatpost Diameter
  • Low stock - 1 item left
  • Inventory on the way
  • Free shipping on all orders $49+

The Fox Transfer Factory Internal dropper post from Fox is lighter and tighter than ever before. Less weight, reduced length, and decreased insertion depth mean a better fit on more bikes. Improved durability and easier serviceability mean more riding and less downtime. Available in 30.9mm and 31.6mm diameters with up to 200mm of drop. The Fox Transfer is an excellent dropper for all-terrain. 


  • Series: Factory
  • Routing: Internal
  • Lower coating: Anodized black
  • Upper coating: Kashima
  • Diameter: 30.9mm, 31.6mm
  • Travel: 100mm, 125mm, 150mm, 175mm, 200mm
  • Remote lever not included

Please reach out to us with any questions you may have on anything we sell. We want to make sure you get the right part the first time. Our lifelong riders at Thunder Mountain Bikes are knowledgeable and would love to talk to you!


We currently offer both economy and expedited shipping options though FedEX and USPS. 

Orders totaling over $49 are eligible to ship for free via an economy ground option of our choice. 

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. 


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.

Returns or exchange requests for New or Used Bikes must be requested by emailing us at 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.

Returns for most other items 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. 

Clearance and open-box items may not be returned. 


To request a return, please log in to your customer account by clicking the  customer account icon  Profile icon in the top right of any page or visit

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. 


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.


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.


If you have any questions concerning our return policy, please contact us at:

(928) 282-1106   |

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Customer Reviews

Based on 4 reviews
Ian Gustafson
Fox Factory Transfer dropper review

I'm very satisfied with this dropper. It engages very reliably, quickly, and smoothly. Also, the seat clamp for saddle positioning is easy enough to adjust. Definitely a step up in quality from the lower end dropper that came with my full sus bike. It also pairs well in performance with my Fox Factory fork. You can't go wrong with high end Fox kit, in my opinion.

Jeff Hargis
Fox Quality

The Fox Factory Transfer dropper post was an excellent addition to my S-Works Stumpjumper. Full Kashima now with my Factory 36 fork and DPS shock. Pretty tight. The Transfer post continues what I expect from Fox: high quality and amazing functionality. The drop is smooth and very easy to set the height desired anywhere along it's travel. Return speed is brisk and easily controlled. Top out is a nice, audible pop. Very smooth functioning overall, and a definite upgrade from my entry level PNW Ridge, which also worked well.
The Transfer's two bolt seat clamp is durable, and one can adjust the tilt without a lot of hassle.
Thunder Mountain delivered my Transfer post just days after placing the online order. I'm very happy to have discovered Thunder Mountain via their online presence. Great stuff, frequent sale prices and snappy delivery.

Ingolf Warnke
Works mostly as expected

Post mechanism is a bit sticky out of the box and needs to be nudged to return back to fully exptended position.

Eric Bane
Coming through in the clutch!

TMB always seem to have hard to find parts. Thanks for the awesome customer service in this very crazy new world!