Sprocket Change Possibilities

[Jackal]

I have a 2009 speedmaster and it is about time to change out my chain and rear sprocket. I was looking and calculating changing the ratio from the stock 2.33 to get a little more off of the top end, and I was wondering if anyone has made this change an if there is a noticeable difference in the ride? Also if I did decide to shorten it to get more torque on my starts if it is even worth it to come up to about a 2.80. Open question let me know any ideas or experiences will be greatly appreciated.

 

[brooke]

There are lots of posts on this topic in this forum , most them are dealing with changing to taller gearing for more relaxed cruising . I have an extra tooth on the front of my Tiger and Thruxton , about a 6% change . You seem to want to go the other way for better acceleration . Perhaps a few extra teeth on the rear and one less on the front would get the ratio you want and if you find it a bit to stiff you can go back up one on the front and move the down to about 6% from the 12% change . Front sprockets are a lot cheaper ....

 

[Jackal]

There are lots of posts on this topic in this forum , most them are dealing with changing to taller gearing for more relaxed cruising . I have an extra tooth on the front of my Tiger and Thruxton , about a 6% change . You seem to want to go the other way for better acceleration . Perhaps a few extra teeth on the rear and one less on the front would get the ratio you want and if you find it a bit to stiff you can go back up one on the front and move the down to about 6% from the 12% change . Front sprockets are a lot cheaper ....

Thanks for the reply, my question was more to the point of noticeably dramatic changes in the riding even from just one tooth, my worry is putting in the work and time, and then having a crappy outcome and having to go back.

 

[Qship]

There is a thread on here somewhere with a chart. Can't recall where it was. Maybe under the Bonneville sub forum or the classics.

 

[Jackal]

There is a thread on here somewhere with a chart. Can't recall where it was. Maybe under the Bonneville sub forum or the classics.

Thanks

 

[brooke]

Thanks for the reply, my question was more to the point of noticeably dramatic changes in the riding even from just one tooth, my worry is putting in the work and time, and then having a crappy outcome and having to go back.

That being the case I would just try one less front tooth and see how you like . There’s a difference between scratching your ass and ripping it all to hell.

 

[Jackal]

That being the case I would just try one less front tooth and see how you like . There’s a difference between scratching your ass and ripping it all to hell.

Agreed.