Triumph T120v, T140. T150v & T160 Close Ratio Gearset

Low Inertia Gearbox

A set of close ratio gears to replace those in a T140 5 speed. 

The improved ratios with a closer spread will give a boost to track performance.  The gearbox also features undercut dogs for fast, accurate gear changes and positive retention.  New bronze bushes are fitted in the relevant gears so all parts are supplied ready to fit as direct replacements

We supply 1st to 4th Mainshaft and Layshaft gears.  These should be built onto the standard Triumph Mainshaft and Layshaft, and also use the standard sleeve gear and drive gear pair.

This Gearset can also be used on the upgraded BSA A75 Rocket 3's

 

Triumph T140 Standard Ratios >
1st 13 - 24 2.585:1
} 28.9%
} 23.81%
} 15.0%
} 16.0%
2nd 16 - 21 1.838:1
3rd 18 - 18 1.400:1
4th 20 - 17 1.190:1
5th 21 - 15 1.000:1
 
Overall reduction 1st - 5th 61.3%
Nova Triumph T140 Close Ratio B Gearset >
1st 14 - 23 2.300:1
} 28.4%
} 19.5%
} 14.6%
} 11.8%
2nd 17 - 20 1.647:1
3rd 19 - 18 1.326:1
4th 21 - 17 1.133:1
5th 21 - 15 1.000:1
 
Overall reduction 1st - 5th 56.5%

Triumph T120v, T140. T150v & T160 Close Ratio Gearset

Price £1100.00

+VAT (if applicable) & Carriage

Availability: Call