Triumph T100 Close Ratio 6 Speed Gearbox

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A full 6 speed gearbox to replace the existing 4 speed unit.  Two extra gears and a closer spread overall to give a massive boost to track performance.  The gearbox features undercut dogs for fast, accurate gear changes and positive retention.  Updated selector mechanism with a drum and fork arrangement to give smooth and reliable changes.

With the addition of two extra gears the kickstart feature has been removed so external roller starting is required.

We supply both shafts and all the selector mechanism in a cassette plate ready to install.

Significant material needs to be removed to install this assembly and therefore will no longer allow the fitting of the old 4 speed.  We are happy to undertake the modification work, alternatively instructions can be supplied.

 

Further Information >
All Gears are Superfinished as Standard
Triumph T100 Standard Gearset >
1st 2.440:1
} 30.7%
} 29.6%
} 16.0%
2nd 1.690:1
3rd 1.190:1
4th 1.000:1
 
Overall reduction 1st - 4th 59.0%
Nova Close Ratio 6 Speed >
1st 15 - 27 x DR 2.438:1
} 29.7%
} 22.2%
} 16.7%
} 13.1%
} 11.8%
2nd 15 - 20 x DR 1.667:1
3rd 21 - 23 x DR 1.369:1
4th 20 - 19 x DR 1.188:1
5th 21 - 18 x DR 1.071:1
6th   1.000:1
DR 16 - 20 x DR 1.250:1
 
Overall reduction 1st - 6th 55.6%

Triumph T100 Close Ratio 6 Speed Gearbox

Price £2350.00

+VAT (if applicable) & Carriage

Availability: Call