GPM Racing Aluminium 7075 Front Brake Disc Caliper for Losi Promoto-MX Motorcycle RTR FXR (MX2035)
We are the importer of record — the price you see is the price you pay.
Handled by us in the UK under the Consumer Rights Act — no sending it overseas.
What our customers say
A selection of recent five-star reviews, as written.
-
★★★★★
Ordered flishrc cobra. Communication was great. Ordered larger batteries but they were the wrong size. Olly shipped the right batteries and gave a refund for the difference I paid. Couldn't ask for more. Thanks for the help with the order.
Robert, 22 September 2026
-
★★★★★
Very helpful when the vehicle I wanted wasn't in stock. Very fast deliver too.
Anna Abbott, 17 September 2026
-
★★★★★
Excellent service speedy delivery and good customer service
GLYN, 10 September 2026
-
★★★★★
Great product and service. I enjoy buying from these guys. Thanks to radio-controllled.co.uk.
Paul Jordan, 3 September 2026
-
★★★★★
Dealt with customer services over an order I accidently placed, they were prompt and dealt with it will, completely refunded within a small window of time, thanks!
Oliver Galustian, 23 July 2026
-
★★★★★
Really good online rc store with some great products and sales on. The owner is very knowledgeable as well.
Simon, 19 July 2026
-
★★★★★
Product delivered promptly and in excellent condition 👍had very helpful and prompt responses from Olly to all my questions, I will definitely be using them again 👍
Mark Clucas, 30 January 2026
-
★★★★★
The customer service and advice were first class!
Steve Avery, 9 September 2025
-
★★★★★
The seller knew I was after one and very kindly informed me when they came back into stock so now have a Flywing Bell 206. Fantastic bit of kit. Well worth the wait.
Pete Goddard, 15 April 2025
-
★★★★★
Great service, car arrived fast and really well packaged. Also, I had a little problem....(which turned out to be me doing it wrong) but someone replied the same evening! Will definitely be buying from them again.
Graham Rousseau, 10 February 2025
Key Specs
- Weight
- 39 g
About this product
Precision front caliper for PROMOTO-MX applications
This CNC-oriented front brake caliper is engineered for LOSI PROMOTO-MX RC platforms and serves as a direct replacement or high-quality upgrade for 1/4-scale PROMOTO-MX motorcycle models. The assembly is delivered complete with mounting hardware and pads, intended exclusively for model chassis use rather than full-size motorcycles.
Built from 7075 aluminium, the caliper provides improved structural stiffness and wear resistance for hobby braking tasks. It is intended for installers and tuners who require consistent pad engagement and reliable mounting on compatible PROMOTO-MX RTR variants.
Packing includes
- Front brake caliper – 1pcs
- Steel teeth – 1pcs
- Grade 12.9 black cap head screws 2.5×8 – 1pcs
- Brake pad – 2pcs
- Special spring – 2pcs
- Servo arm – 1pcs
- Special screws pin – 1pcs
Original Name / Part No:
LOS262009
Compatible Models
- LOSI-1/4 PROMOTO-MX MOTORCYCLE RTR, FXR-LOS06000
- LOSI-1/4 PROMOTO-MX MOTORCYCLE RTR PRO CIRCUIT-LOS06002
For precision hobby builds on LOSI PROMOTO-MX 1/4-scale bikes, MX2035 provides a CNC-friendly aluminium caliper assembly that improves pad stability and fitment for consistent braking performance.
What tolerances should I check during fitment?
Verify rotor runout and caliper mount flatness, confirm screw thread engagement, and check pad clearance to ensure consistent operation.
Are the supplied fasteners high grade?
The kit includes a grade 12.9 black cap head screw as listed; use correct torque values for aluminium-to-steel interfaces to prevent galling.
Can this caliper be tuned for different pad compounds?
Yes, the caliper accepts standard pad replacements matching the supplied pad geometry, allowing compound changes to tune bite and wear characteristics.
Any recommended post-install checks?
After installation, re-torque fasteners after a short break-in, confirm lever travel and pad seating, and inspect for any rubbing during slow rotation. Write Product Review Please sign in your account before you can write any review.
Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.
What our customers say
A selection of recent five-star reviews, as written.
-
★★★★★
Ordered flishrc cobra. Communication was great. Ordered larger batteries but they were the wrong size. Olly shipped the right batteries and gave a refund for the difference I paid. Couldn't ask for more. Thanks for the help with the order.
Robert, 22 September 2026
-
★★★★★
Very helpful when the vehicle I wanted wasn't in stock. Very fast deliver too.
Anna Abbott, 17 September 2026
-
★★★★★
Excellent service speedy delivery and good customer service
GLYN, 10 September 2026
-
★★★★★
Great product and service. I enjoy buying from these guys. Thanks to radio-controllled.co.uk.
Paul Jordan, 3 September 2026
-
★★★★★
Dealt with customer services over an order I accidently placed, they were prompt and dealt with it will, completely refunded within a small window of time, thanks!
Oliver Galustian, 23 July 2026
-
★★★★★
Really good online rc store with some great products and sales on. The owner is very knowledgeable as well.
Simon, 19 July 2026
-
★★★★★
Product delivered promptly and in excellent condition 👍had very helpful and prompt responses from Olly to all my questions, I will definitely be using them again 👍
Mark Clucas, 30 January 2026
-
★★★★★
The customer service and advice were first class!
Steve Avery, 9 September 2025
-
★★★★★
The seller knew I was after one and very kindly informed me when they came back into stock so now have a Flywing Bell 206. Fantastic bit of kit. Well worth the wait.
Pete Goddard, 15 April 2025
-
★★★★★
Great service, car arrived fast and really well packaged. Also, I had a little problem....(which turned out to be me doing it wrong) but someone replied the same evening! Will definitely be buying from them again.
Graham Rousseau, 10 February 2025
