Racing Motorcycle Crankshafts
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- AX115-Crankshaft
AX100 Crankshaft – High Performance Replacement for Suzuki AX100
- AX100 crankshaft (Kruk As) for Suzuki AX100 motorcycles. A durable replacement for engine rebuilds and performance upgrades.
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- GY6 Crankshaft
GY6 Custom Crankshaft | Kymco QMI152 / QMJ152 / 157QMB
- Custom Kymco GY6 crankshaft (Kruk As) for QMI152, QMJ152 and 157QMB scooter applications. Confirmed Stroker options: 3 mm, 8.2 mm, 10.20 mm and 14 mm. Kruk As Custom Stroke OEM/ODM projects are quote-only.
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- Honda CG400 Crankshaft
High-Performance CG400 Crankshaft for Honda
- High-performance CG400 crankshaft (Kruk As) for Honda CG400 engine rebuilds and performance tuning.
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- PCX160 Crankshaft, Honda, Racing Motorcycle Crankshafts
Honda PCX160 Crankshaft – +4/+6/+10/+14 mm Custom Stroke
- PCX160 Crankshaft (Kruk As) for Honda PCX160, ADV160 and Vario160. Stroke Up +4 mm, +6 mm, +10 mm and +14 mm options are available. For Kruk As Custom Stroke projects, OEM/ODM quotation applies. MOQ 300 pieces.
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- Racing Motorcycle Crankshafts, Honda, Tiger Crankshaft
Honda Tiger Crankshaft – OEM for Tiger Revo, GL Pro & MegaPro
- Honda Tiger Crankshaft (Kruk As) for Honda Tiger 2000, Tiger Revo, GL Pro, GL Max and MegaPro. MOQ: 300 pieces. OEM logo marking and custom packaging are available after confirmation.
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- KR150 Crankshaft
Kawasaki KR150 Racing Crankshaft
- Custom Kawasaki KR150 racing crankshaft (Kruk As Racing) for Ninja ZX150, RR150 and KR150. Confirmed Jack-Up options: +0.8 mm, +1.0 mm, +2.0 mm and +3.0 mm. Kruk As Custom Stroke projects are quote-only.
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- Racing Motorcycle Crankshafts, KR150 Crankshaft
KR150 Crankshaft with CNC Connecting Rod | Custom Jack-Up
- Custom KR150 crankshaft (Kruk As) with CNC connecting rod (Stang Seher) for KR150, Ninja 150 R/RR/SS, KRR, ZX150 and Serpico applications. Available with +0.8mm, +1.0mm, +2.0mm and +3.0mm Jack-Up options. For Kruk As Custom Stroke projects, specifications are available according to drawings, samples or confirmed project requirements.
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- Racing Motorcycle Crankshafts, Honda, PCX160 Crankshaft
PCX160 65.5mm Crankshaft – Honda PCX160/ADV160/Vario160
- PCX160 65.5mm Crankshaft (Kruk As) with confirmed 65.5 mm final stroke for Honda PCX160, ADV160 and Vario160. OEM/ODM quotation, MOQ 300 pieces.
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- PCX150 Crankshaft
Ultimate 61.5mm PCX150 Racing Crankshaft – Vario150/ADV150 Upgrades
- PCX150 Racing Crankshaft (Kruk As PCX150) from Ruizheng Racing is engineered for riders and workshops seeking high durability, power, and smooth balance. Designed for Southeast Asian riders, racing teams, and global performance motorcycle shops, this crankshaft delivers both strength and precision for serious racing applications.
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- Yamaha F1ZR Racing Crankshaft
Yamaha F1ZR Custom Crankshaft | 52 / 53 / 53.6 / 54 mm
- Custom Yamaha F1ZR crankshaft (Kruk As) with confirmed 52 mm, 53 mm, 53.6 mm and 54 mm options. OEM/ODM Kruk As Custom Stroke projects are available by quotation.
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- Mio Crankshaft, Racing Motorcycle Crankshafts, Yamaha
Yamaha Mio Crankshaft – 62 / 63.8 / 64 / 66 / 68 mm Custom Kruk As Mio
- Yamaha Mio Crankshaft / Kruk As Mio for Mio Sporty, Soul, J, M3, Fino and Nouvo. Stroke/JACK: 62 mm/+2.1 mm, 63.8 mm/+3 mm, 64 mm/+3 mm, 66 mm/+4 mm, 68 mm/+5 mm. OEM/ODM. MOQ: 300 pieces.
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- Nmax Crankshaft
Yamaha NMAX Custom Crankshaft | 61.7 / 64.8 / 65.7 / 66.7 / 67.1 / 68.7 mm
- Custom Yamaha NMAX crankshaft (Kruk As) with confirmed 61.7 mm, 64.8 mm, 65.7 mm, 66.7 mm, 67.1 mm and 68.7 mm stroke options. Quote-only OEM/ODM projects.
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Ruizheng Racing supplies racing motorcycle crankshafts (Kruk As) for distributors, engine builders and OEM/ODM projects. Specifications are confirmed by model, engine code, drawing or sample before production.
- Standard and custom stroke configurations
- Crank pin, connecting rod, counterweight and finish options
- Logo, packaging and repeat wholesale supply support
Send the model or engine code, target stroke, pin diameter, rod specification, quantity and destination country. Send crankshaft requirements on WhatsApp.
Learn about our manufacturing process, quality control and OEM/ODM support.
Find a Confirmed Crankshaft Project
- Yamaha RX King Custom Crankshaft
- Kawasaki KR150 Custom Crankshaft
- Honda PCX160 Custom Crankshaft
- Yamaha F1ZR Custom Crankshaft
- Yamaha Mio Custom Crankshaft
- Yamaha NMAX Custom Crankshaft
Each project is confirmed by model, engine code, target stroke, drawing or sample before quotation and production.