HI, think i have asked this before - but still confused.. My rr9 feels slow..has a PC and after market can.. all the power seems to be at top revs..and i end up dropping 2 grears at a time if i want to accelerate when cruising in say 5th gear will changing the sprocket make any difference? if so what do i need? i dont want the bike to be pulling wheelies everytime i open the throttle Any idea's? Bike being shipped to Nice next Monday - so need to may get this sorted
Easiest and cheapest way to do it is to drop 1 tooth on the front sprocket. Should'nt cost you more than £20 and give you more punch out of the corners. Definitely weird if the blade feels slow down low though, as it has 1 of the highest torque readings of any inline 4.
how do i drop the tooth? what do i need to buy? will it knock my speedo out too? my old RR5 was great at low revs...the rr9 seem to want to be run to top revs...
Might be worth getting a dyno read to see if its running right. Personally always thought the blade felt slow but only cause its so effortless. Never had to drop cogs! Loads of torque
Someone suggested i get the rear up 2? what will this do? will this fit? 44T RENTHAL GOLD 520 ALLOY SPROCKET ZX400 ZXR 400 750 ZX6R ZZR600 ZX600 GSXR750T | eBay
That won't fit no. Adding 2 teeth to the back sprocket also helps with acceleration. In regards to the speedo it will read very slightly higher than what you are actually travelling at. Ie if you speedo reads 30mph you will only be doing 27mph (that's only an example not to be taken as gospel). Again dropping a tooth at the front (1 less tooth than standard) has the same effect, but will be cheaper to buy than a rear sprocket.
Down 1 on the Front and up 2 on the Rear will give you the desired results. If not sure on fitment and chain pitch (standard is 530) then email/pm Andy from Demon Tweeks and he'll sort U out.
Was speaking to someone..they said going up 2 teeth is the same as reducing a tooth on the front.. Also that the Honda front sproket has a rubber bit in there to reduce the vibrations...and some after market ones dont.. Will call Andy in the morning...
One or the other aint enough in my experience, you need to do both sprockets to get the desired result. All Sports Bikes are way over geared so as to achieve headline grabbing Top Speeds. The only downside to lowering the gearing is your constant speed/cruising Revs will rise with a slight dip in fuel consumption but that's nowt in the scheme of things for a Sports Bike owner
tbh if it's just road riding your doing then -1 will suffice,or +3 on the rear. for reference -1 front is equal to about +2.5-2.7 on the rear. it's easier to change the front,but you will still need to re adjust the chain to take up the slack.
I fully agree. I dropped one tooth from the front before (in my RR4 model), but you can hardly feel the difference. Now I have -1 at the front and +2 at the rear. With 520 chain conversion. The acceleration is manic
