Guys, I have read that people are changing to 17/40 gearing in Gen2 14s and are getting better 1/4 mile times as a result, but has anyone done this change on their road going bike? If so how do you find it?

1. I can't find a suitable steel 40T, did you use an alloy rear sprocket? Or an alloy/steel hybrid?
2. Has anyone tried an 18/42 as a very similar alternative?
3. I read posts about Gen2 having shuddering issues or something like that after gearing changes, was that only with a 41T rear?
4. I imagine alloy sprockets don't last long on the street, fill me in.
5. Anything else that you can suggest or share?

The reason I am asking is we are looking at steeper gearing for my sons Gen2, its a regular street bike that he also drag races so it has stock wheelbase and is at stock height. We might strap it later but he really wants to keep it in real street trim. Will the steeper gearing help us keep the front down? Will it be a lot harder on the clutch? It seems to pull the stock gearing easily, the 10% steeper gears might be fun on the street.

Any input would be great.

As for alloy gears, I use Vortex gears. Best strip combo for me has been 16/43 but I dont like that for street or distance riding. I have used both 17/40 and 17/41 on the street and , yes , certain combos will give a shudder . for me it happened at the strip between 3rd and 4th causing a false neutral . On the street, it is just a shudder unless hard on the gas. It can be dialed out as my shop was able to eliminate it . I am not good at keeping records so I cant penpoint the examples .
Hopefully one of the smarter 1/4 mile guys can give you more accurate info.

Thanks, was that with extensions and lowered? What about at stock wheelbase?

:)

Missed your post but , stock wheelbase , lowered with brocks adj links and strapped.

What was your best 60, 660 and ET at stock height?

:)

Sorry I missed this . I hardly ever check to see if a post has been " covered" Just never got use to the way this board functions . Anyway, as to your question,I really do not remember and that was about five years ago ..