Apologies if this has been discussed before. Did a quick search but couldn't see anything. I'm thinking of fitting a 13 tooth front sprocket to my 749. A few questions ... Has anyone on here done this ? Does it make much difference ? Would I need to take a link out of the chain ? Cheers
Can you even get a 13t sprocket? Personally I wouldn't even consider it, even a 14t is small but still OK although a 15t is a better option even if it requires a new rear sprocket & chain to get the required ratio. But going down 1 on the front should mean you won't need a new chain as opposed to a 3t increase at the rear (which gives a similar ratio change) that would almost certainly require a new chain.
try this for information. I think a 13 t front would put too much torque on the output shaft. Avanti Race Parts - Ducati Parts and Accessories for Road and Race Motorcycles. Services for Ducati Motorcycles. Race prep, Paintwork, ECU Repairs, Anodising and more! Duke
I would also think that you risk chain-swingarm abrasion as the radius at the front sprocket will be reduced in height. I run a 38T or 39t rear. What you are looking at would give the same as a increase of 6 teeth on the rear over standard ie 42 rear.!
Thanks for all the info, really helpful. Gonna go for 14T front /43T rear and a 520 chain. Let's see if it gives me more drive out of the corners.
Did that with mine and it made a great difference, especially around town. Also improved fuel economy too.
14t/43t sprockets and chain fitted and went out for 20 mile ride today. Bike feels a lot livelier, especially low down, better and smoother between 20 - 40mph. Revs are noticeably higher (obviously :Facepalm on motorway at higher speeds but not disturbingly or annoyingly so. Well worth the £150 for the chain and sprocket kit. Track day at Anglesey on Friday, let's see if it feels better on the track as well, hope so !!!!!
Can I ask where you got the chain and sprocket set from? I've been looking at doing this to mine but unsure about which one to go for.
Bike torque racing - AFAM sprockets and chain. They only do the 43T rear sprocket in alloy but it is nice
I did a sprocket/chain swap on my GSXR and LOVED IT! Huge difference on short tracks, like you said "coming up out of the corners". I lost piles of top end, but other than midnight blasts down an empty 4 lane, I never realized the top end reduction on tracks. I am so very much ready to do this to my 999. Thanks for the post. Thanks guys for the referrals as to where you got your stuff.
