LOSI Promoto-MX Motorcycle 35T/11T Medium Carbon Steel Hub & Front Sprocket Set by GPM MX3511S  [MX3511S]

TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Medium Carbon Steel Hub Chain Sprocket set (35T/11T) - GPM MX3511S
Price:
USD$30.90
Brand:
GPM
Model:
MX3511S
GTIN:
4894538384970
Condition:
Brand New
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alt="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Medium Carbon Steel Hub Chain Sprocket set (35T/11T) - GPM MX3511S" title="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Medium Carbon Steel Hub Chain Sprocket set (35T/11T) - GPM MX3511S"
alt="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Medium Carbon Steel Hub Chain Sprocket set (35T/11T) - GPM MX3511S" title="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Medium Carbon Steel Hub Chain Sprocket set (35T/11T) - GPM MX3511S"
alt="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Medium Carbon Steel Hub Chain Sprocket set (35T/11T) - GPM MX3511S" title="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Medium Carbon Steel Hub Chain Sprocket set (35T/11T) - GPM MX3511S"
alt="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Medium Carbon Steel Hub Chain Sprocket set (35T/11T) - GPM MX3511S" title="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Medium Carbon Steel Hub Chain Sprocket set (35T/11T) - GPM MX3511S"

Medium carbon steel sprocket set

This GPM MX3511S sprocket set is an RC-scale replacement intended for the LOSI Promoto-MX 1/4 motorcycle RTR platform. The set replaces the rear hub chain sprocket and front chain sprocket with medium carbon steel parts to provide higher wear resistance compared with standard stamped parts, while keeping a straightforward fit for stock drivetrains.

Designed as a direct replacement, the set focuses on durability and drivetrain consistency rather than altering final gearing ratios. The included screw pin matches the original mounting style for a plug-and-play swap on compatible LOSI Promoto-MX RTR units.

Installation notes: remove the stock hub chain sprocket and front pinion, transfer any spacers or washers as required, install the new 35T rear hub sprocket and 11T front sprocket, and secure the screw pin to factory torque norms. Verify chain alignment and run-in before full-power operation.

Packing includes

  • Hub Chain Sprocket 35T - 1pcs
  • Front Chain Sprocket 11T - 1pcs
  • Screw Pin M4x2.5x14 - 1pcs

Original Name / Part No:

LOS262003+LOS262004

Compatible Models

  • LOSI-1/4 PROMOTO-MX MOTORCYCLE RTR, FXR-LOS06000
  • LOSI-1/4 PROMOTO-MX MOTORCYCLE RTR, FXR-LOS06002

Use this set when the original sprockets show wear or when you prioritize longer part life for RC practice sessions; check chain tension and alignment after fitment to preserve bearing and chain life.

Are these sprockets a direct fit for my Promoto-MX RTR?

They are designed as direct replacements for the listed LOSI Promoto-MX RTR models, retaining the stock mounting method.

What material are the sprockets made from?

The set uses medium carbon steel for increased strength and wear resistance compared with typical stamped parts.

Will changing to this set affect gear ratios?

No, the set maintains the specified tooth counts of 35T rear and 11T front, so overall ratio stays the same unless you swap to different tooth counts.

Any special tools required for installation?

Installation uses common hand tools to remove the old sprockets and secure the screw pin; follow standard RC maintenance practice for torque and chain alignment.

How should I break in the new sprockets?

Run at moderate speed for several minutes while checking for noise and alignment, then re-tension the chain before normal running.

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