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Thinking about changing my gearing a bit for my responsive and aggressive acceleration between 0 and 90 and from what I can gather a higher ratio is the way to go. Many threads on the forum suggest that changing the gearing by 2 teeth or so does not affect the speedo's accuracy. true or false?
second, some people report changing the front. some report changing the rear. some report changing both by half as much. What's the deal with that? what influences your decision to change one, the other, or both? is there some hidden advantage? It seems to me logically that paying for one sprocket instead of two to get the same result would be the best practice, but there's probably some reason why that isn't necessarily true.
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Isn’t the speed determined by reading the sensor on the rear wheel? If that’s the case, surely only changing the diameter of the wheel would affect it?
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that's what others seem to suggest. that's an easy confirmation, i'm just trying to see if i have to budget an extra 100$ for a speedo healer.
mostly i'm concerned with parsing the logic behind which sprockets people choose to modify.
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Replacing the front sprocket is a bit simpler and cheaper than the rear. That said, there is some thought that the smaller front sprocket could cause extra chain wear. Though, that has not been reported here that I have seen. I decided to change the rear for no other reason than I liked the look of the ratio, from adding two teeth to the rear over reducing one from the front. I am happy with the change for my ridding style. I may try dropping a tooth from the front, just to feel the results.
The speed is measured via the sensor on the rear wheel and is not affected by gear changes.
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Changing gear ratios can be done from either end or both, Simplest and cheapest is changing the counter shaft if there's room and one is available to meet your needs. If that doesn't get the job done you can further alter gearing at the rear. we always figured 3 teeth on the rear is equal to one tooth on the front. Some people will go one tooth on the front, and want some more change but not a whole tooth's worth, so then they will go 1 or 2 teeth on the rear to get exactly the gearing they are searching for.
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(04-20-2019, 07:15 AM)misterprofessionality_imp Wrote: that's what others seem to suggest. that's an easy confirmation, i'm just trying to see if i have to budget an extra 100$ for a speedo healer.
mostly i'm concerned with parsing the logic behind which sprockets people choose to modify.
You don't need a speedo healer at the CB1100. The speed is measured directly at the rear wheel, the gearing/transmission ratio doesn't matter.
I added 2 teeth to the rear sprocket to get a more responsive gearing for my '13. Worked very well for me. The OEM transmission felt too long for me.
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This is encouraging. i'm finding some kits with front and rear sprockets (and a new chain) that allow you to pick your ratio. I'd like to go with something as light as possible if i'm going to upgrade, though. Can anybody recommend any sprocket sets that are made of superlight steel or durable aluminum? i'm finding a couple on Webike, but unsure if they're good buys or not.
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you bring up a good point about chain length...let's say i went down one in the front and up two in the rear...what's my new chain length? stock is 110 links correct?
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A good source for sprockets is Spacely Sprockets. Try to avoid Coswell’s cogs.
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(04-20-2019, 11:37 PM)m in sc_imp Wrote: it would probably work out 'ok' but not sure. that would involve math and stuff. lol. figure you are taking 1 link out of total length (1/2 per side of chain if referring to 'top' and 'bottom of chain) with front, but adding 2 in rear with a net of 1 link added, should be ok. but, also changing radius' of sprockets working circle. theres the rub. it may or may not work w stock chain..
i've been browsing that rebel sprockets website you passed me. luckily, they have a chain length calculator built into the site (very handy). i plugged in the new sprocket numbers and it's still feeding me a 110 link chain, so it seems they believe i'll be fine.
