stock sprocket
#1
#3
#4
and what is the stock chain? is it a 520 108 link?
Last edited by chiefF3; 02-21-2009 at 08:36 PM. Reason: added question
#6
#7
Try to find a kit with a steel rear sprocket. There is NO advantage to getting a 520 kit. Technically its lighter, therefore has less reciprocating mass, and supposedly making you faster. HAH, the only way you'll ever notice it is if you're shaving TENTHS of a second off you lap time. Plus the wear out faster than their 525 counterparts. Contact the eBay seller "moto-heaven" (or haven) they know their sht. You tell them what you're tryin to achieve (Stuntin, cruisin, or lotsa freeway ridin, ect.) and they'll send you what you need. for like 150+-. They have colored chains too.
#9
Yah, I did the 520 conversion and didn't really see much difference. The main change was the -1 on the front sprocket. The gauging of 520,525,530 is based on the engine size. Stock is 525 and bikes with bigger engines, 1000 on up are 530 weight for your chain. So if you go 520 and don't change your gears, you probably won't notice much.
#10
BIGGER Front Sprocket for F4i? (Touring, not Track focussed)
I've searched this whole forum for info on people INCREASING the size of the front sprocket for the F4i to reduce its cruising engine speed, but about 95% of sprocket change topics relate to reducing the standard 16 front tooth to 15 tooth (to increase acceleration) .... so apologies if I'm asking a question that may already be covered, but I can't find info on increasing the Front Sprocket size.
I use my F4i mainly as a tourer, not a track bike.
Anyway, after riding about 1200km (800 miles) last weekend, I've decided I want to make my F4i cruise a little QUIETER, perhaps bring the cruising 5500rpm down a bit, which will also improve fuel economy and increase my range, which is important so I have that extra bit in the tank before the next fuel stop. I know for a fact increasing the front sprocket size and / or reducing the rear sprocket size will achieve this (I know track riders also do this to increase top speed).
I'm also aware a Speedo Healer will be required to correct the speedometer readings once the overall gear ratios are changed.
I believe my engine has enough torque from 4500rpm to overtake comfortably, so I'm not concerned about cruising at 4500rpm instead of 5500rpm (I can always downchange if 4500rpm is not strong enough).
Can someone (preferably who has done this before) advise:
- what's a good sprocket combination size to reduce cruising engine speed - say a 17/45 front/rear combination?
- what's a good chain to go with this (I'll need to replace my chain soon, that's why I'm taking opportunity to do all this)
- will the Speedo Healer cover this combination
- perhaps there's a chain/sprocket package from a company that does this (including perhaps a Speedo Healer) - can you advise the company.
- what concerns do I need to watch out for, eg. overall chain length / tension, overall reliability, effect on 1st gear take offs etc ...
Again I apologise if this topic has been covered, I honestly cannot locate the topics, so any advice appreciated.
I use my F4i mainly as a tourer, not a track bike.
Anyway, after riding about 1200km (800 miles) last weekend, I've decided I want to make my F4i cruise a little QUIETER, perhaps bring the cruising 5500rpm down a bit, which will also improve fuel economy and increase my range, which is important so I have that extra bit in the tank before the next fuel stop. I know for a fact increasing the front sprocket size and / or reducing the rear sprocket size will achieve this (I know track riders also do this to increase top speed).
I'm also aware a Speedo Healer will be required to correct the speedometer readings once the overall gear ratios are changed.
I believe my engine has enough torque from 4500rpm to overtake comfortably, so I'm not concerned about cruising at 4500rpm instead of 5500rpm (I can always downchange if 4500rpm is not strong enough).
Can someone (preferably who has done this before) advise:
- what's a good sprocket combination size to reduce cruising engine speed - say a 17/45 front/rear combination?
- what's a good chain to go with this (I'll need to replace my chain soon, that's why I'm taking opportunity to do all this)
- will the Speedo Healer cover this combination
- perhaps there's a chain/sprocket package from a company that does this (including perhaps a Speedo Healer) - can you advise the company.
- what concerns do I need to watch out for, eg. overall chain length / tension, overall reliability, effect on 1st gear take offs etc ...
Again I apologise if this topic has been covered, I honestly cannot locate the topics, so any advice appreciated.