Change gear ratios?

[Al YOUNG]

Hi,
Has anyone changed the rear sprocket? as a mainly on road rider I think it would be nice to up the gearing a bit but not sure what size rear sprocket to fit…

[martin G10]

Hi, Al
The original 150’s ran 15/43
with 19″ wheels
The standard gearing on later models changed to 15/40 with the 19″ wheels,
some Foggys have 17″wheels , somebody mentioned a minimum of 38teeth on the rear (can’t rember who !).
My six is running a mitus 130 on the rear instead of the 140 , for a better tyre profile , with its smaller circumstance I changed the gearing to 16/40 for mph16.126 per 1k rpm , a tiny increase over standard
(The front sprocket chain guide only fits 15t) take a look through the screens on the Speedo (saved maximums) to see what your mph / rpm
works out at .
regards martin

[dghrdg]

If you primarily ride on roads and want to increase the gearing, you can achieve this by installing a larger rear sprocket or a smaller front sprocket. A larger rear sprocket will effectively decrease the gear ratio, resulting in lower RPM at a given speed. This modification can provide a smoother and more relaxed riding experience, especially at higher speeds.

To determine the appropriate size for the rear sprocket, it’s recommended to consult your motorcycle’s manufacturer specifications, user manual, or contact a knowledgeable mechanic or motorcycle specialist. They will be able to provide specific recommendations based on your motorcycle’s make, model, and intended usage. motorcycle helmet with camera built in

Keep in mind that changing the gearing can have implications on the motorcycle’s performance, including acceleration and top speed, as well as fuel efficiency. It’s important to consider these factors and find a balance that suits your riding style and preferences.

[Scrambler one two two]

Think you mean larger front sprocket, or smaller rear sprocket.

I have changed the rear on my Scrambler from 43 down to 40 which has made a nice improvement. I think 40 is the smallest you can go on the scrambler and i assume the Blackout will be the same

[martin G10]

Hi, I think somebody mentioned a 38t rear being the smallest possible on a foggy 17″ wheels , I think they all use a 15t front , the Six came with 15/40 (19″ wheels) my six has 16/40 , the front chain sprocket guide has to be modified.
martin

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