Kyosho Motorcycle Steel Middle Gear SKM153 by GPM  [SKM153]

Kyosho Motor Cycle Steel Middle Gear - 1pc - GPM SKM153
Price:
USD$11.90
Brand:
GPM
Model:
SKM153
GTIN:
4894538142495
Condition:
Brand New
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Precision steel middle gear for Kyosho motorcycle drivetrains

This steel middle gear is supplied as a single 1pc aftermarket replacement for Kyosho motorcycle models and is intended to act as the central transmission stage, transferring torque from motor pinion to spur assembly with consistent engagement.

Engineered as a steel component to extend service life compared with standard plastic gears, the part is suitable where durability and stable gear mesh are required during typical running or mild tuning. It remains a standalone drivetrain gear rather than a complete gearbox unit.

Professional fitment notes: verify shaft concentricity and bearing clearance before installation, establish correct tooth contact with the pinion and spur, and avoid introducing excessive axial load to bearings. Confirm free rotation through suspension travel to prevent binding under load.

Measure shaft diameter and centre distance to the spur gear, compare with the original middle gear, and verify key dimensions match SKM153 before final installation.
Set a modest backlash, rotate the drivetrain while observing tooth contact, and adjust shims or bearing location until engagement is even across the tooth face.
Keep the gears free of debris, inspect bearings periodically for wear, and replace any damaged items promptly to protect the SKM153 middle gear and maintain drivetrain efficiency.