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Yamaha WR450 Close Ratio 5 Speed Gearbox
This gearset is a direct replacement to the Yamaha WR450 5 speed motocross gearbox with the added advantage of undercut engagement dogs and road racing ratios.
This kit includes input shaft, output shaft and all loose gears
All circlips, bushes, washers and bearings are retained from the standard box.
Nova Race Gearset % Drop Yamaha Moto X Box
1st 16 - 27 1.688:1 1st 12 - 29 2.417:1
Overall Reduction 1st - 5th 50.2% Overall Reduction 1st - 5th 65.2%
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Batches available to order - P.O.A
Nova Racing Transmissions Ltd Unit 12 Star Road Industrial Estate, Star Road, Partridge Green, West Sussex, UK, RH13 8RA
Company Number: 2438157 Registered in: England VAT Number: 550-6594-34
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