Reinforce your GRK5-R or GRK-R motor unit with this trio of competition-proven drivetrain upgrades from SHIBATA. The Hyper Idler Shaft features special plating for enhanced wear resistance during high-RPM operation, while the HRP High-Speed Idler Gears benefit from revised resin materials and manufacturing methods under Hayato Yoshiba's supervision. Together, they deliver the reliability that has secured victories at SDC and other prestigious events.
Key Features
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R31S128 Hyper Idler Shaft: Special plating coating for improved wear resistance at high RPMs.
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R31S129 HRP High-Speed Idler Gear (24T): Revised resin material and manufacturing method.
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R31S130 HRP High-Speed Idler Gear (28T): 48-pitch gear optimized for bearing fit.
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Optimal bearing fit accounts for thermal expansion during extended operation.
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Competition-proven at SDC and other events, contributing to championship victories.
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Compatible with 1050 bearings (10mm outer diameter x 5mm inner diameter x 4mm thick).
Why Choose This
These components represent the culmination of racing development, where every detail from material selection to manufacturing precision affects performance and durability. The Hyper Idler Shaft's specialized plating addresses the specific challenge of high-RPM wear, while the HRP gears' revised resin formulation delivers consistent mesh under thermal stress. For racers demanding the same reliability that has powered SDC victories, this combination provides the foundation for sustained competitive performance. The Hayato Yoshiba supervision ensures alignment with proven racing setups.
Product Information
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Products:
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SHIBATA R31S128 Hyper Idler Shaft for GRK5-R
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SHIBATA R31S129 HRP High-Speed Idler Gear 24T
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SHIBATA R31S130 HRP High-Speed Idler Gear 28T
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Compatibility: GRK5-R/GRK-R motor units
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Gear Pitch: 48P
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Bearing Compatibility: 1050 bearings (10×5×4mm)
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Features: Special plating coating; revised resin materials; competition-proven design
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Supervision: Hayato Yoshiba
Upgrade your GRK motor unit with these competition-hardened drivetrain components, engineered for the demands of high-RPM racing. From plated shafts to thermally optimized gears, every detail serves victory. Secure this performance trio today and build the reliability that championships demand.
