GPM Racing Aluminium 7075 Front Brake Caliper for Losi Promoto-MX Motorcycle RTR FXR (MX035)
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
- 29 g
About this product
Technical front caliper option for PROMOTO-MX
MX035 is a CNC-friendly front brake caliper designed for LOSI PROMOTO-MX 1/4 motorcycle RTR platforms, manufactured from 7075 aluminium to provide higher stiffness and repeatable mounting geometry in the brake assembly. The following content details precise fitment, installation considerations, and how the caliper contributes to tuning brake actuation without implying on-road use.
The aluminium caliper supersedes the stock plastic component to deliver a solid mounting point for the brake interface and to accept the supplied Grade 12.9 fasteners. It preserves the original mounting pattern so it interfaces cleanly with the existing actuating linkage and brake disk on the specified PROMOTO-MX RTR variants.
Packing includes
- Front brake caliper – 1pcs
- Steel teeth – 1pcs
- Grade 12.9 black cap head screws 2.5×8 – 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 technical builders seeking a durable metal upgrade on the listed PROMOTO-MX kits, MX035 offers tighter mounting tolerance and improved hardware retention; validate disc alignment, torque sequence, and linkage engagement during installation.
What machining tolerances should I expect?
The component is produced to tight CNC machining tolerances to maintain consistent mounting geometry; inspect mating faces and threads before final assembly.
Recommended torque for the 2.5×8 screws?
Use a controlled torque appropriate for Grade 12.9 hardware in aluminium components; hand-tighten and check engagement, then apply final torque in small increments while monitoring fit.
Can I reuse the OEM linkage?
Yes, the caliper is intended to interface with the existing actuating linkage and brake disk on the listed PROMOTO-MX kits without modification. 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
