BMW S1000RR Close Ratio Race Gearbox

Full six speed close ratio gear set comprising both input and output shafts and all gears. Supplied fully assembled ready for installation.

All engagement dogs are undercut to promote positive and rapid engagement, and backlash angles have been optimized for each gear.

We offer different ratio sets. The ‘E’ ratio set has the same 3rd-6th ratio as the standard box but with a taller & closer 1st and 2nd gear.

The ‘C’ ratio set features different ratios throughout, producing an even close ratio gearbox.

Superfinished in house as standard.

1st 17 – 45 2.647:1
} 21.0%
} 17.4%
} 13.2%
} 9.3%
} 7.3%
2nd 22 – 46 2.091:1
3rd 22 – 38 1.727:1
4th 24 – 36 1.500:1
5th 25 – 34 1.360:1
6th 23 – 29 1.261:1
Overall reduction 1st – 6th 52.4%

1st 18 – 43 2.389:1
} 16.3%
} 13.9%
} 12.9%
} 9.3%
} 7.3%
2nd 20 – 40 2.000:1
3rd 18 – 31 1.722:1
4th 24 – 36 1.500:1
5th 25 – 34 1.360:1
6th 23 – 29 1.261:1
Overall reduction 1st – 6th 47.2%

1st 15 – 37 2.467:1
} 18.9%
} 13.9%
} 10.5%
} 8.1%
} 5.9%
2nd 17 – 34 2.000:1
3rd 18 – 31 1.722:1
4th 24 – 37 1.542:1
5th 24 – 34 1.417:1
6th 21 – 18 1.333:1
Overall reduction 1st – 6th 46.0%

BMW S1000RR Close Ratio Race Gearbox

Price : £2500

+VAT (if applicable) & Carriage.

Nova assembly:

04454-000 (C)

254 (E)