Yamaha RD350 YPVS & RZ350 Close Ratio Gearboxes

A full close ratio gearset for the RD350 and RZ350 with racing undercut dogs for fast, accurate gear changes and positive retention.  With ratios optimized for racing, this gearbox will make for a large improvement in acceleration and top speed on the track.

We also offer a second set of ratios which are a little wider than the race set and will suit road bikes and street specials.

A new kickstart idler gear is included in the assembly and runs on a needle bearing to prevent the common wear issue of the standard part.

We supply the fully assembled input and output shafts ready to fit.  All gears are Superfinished as standard.

1st 14 – 40 2.857:1
} 30.0%
} 21.4%
} 17.8%
} 13.16%
2nd 18 – 36 2.000:1
3rd 21 – 33 1.571:1
4th 24 – 31 1.292:1
5th 26 – 29 1.115:1
Overall reduction 1st – 5th 61.0%

1st 18 – 34 1.889:1
} 23.2%
} 15.4%
} 11.7%
} 7.7%
} 7.7%
2nd 20 – 29 1.450:1
3rd 22 – 27 1.227:1
4th 24 – 26 1.083:1
5th 25 – 25 1.000:1
6th 26 – 24 0.923:1
Overall reduction 1st – 6th 51.1%

1st 17 – 33 1.941:1
} 25.3%
} 19.0%
} 11.3%
} 8.2%
} 7.5%
2nd 20 – 29 1.450:1
3rd 23 – 27 1.174:1
4th 24 – 25 1.042:1
5th 23 – 22 0.957:1
6th 26 – 23 0.885:1
Overall reduction 1st – 6th 54.4%

Yamaha RD350 YPVS & RZ350 Close Ratio Gearboxes

Price £2025.00

+VAT (if applicable) & Carriage.

Nova assembly:

06380 (A)

06427 (B)