748r gearing

[Chrisiball]

I have put a renthal sprocket carrier with a 40 tooth sprocket on me 748r (standard is 36) what size front sprocket do i need to bring the gearing back towards standard? Or if any one has a 748r what setup are you runnung? Its just 4 teeth over standard sounds a bit extreme to me! Also how many links in the chain will i need?
Cheers

[antonye]

I'm running 14/40 on my 748S and it's the best mod I've done so far - it feels much quicker and you're also out of the poor fuelling at low revs when in traffic. You'll need a 96 link chain for this rather than the 94 standard.

[Chrisiball]

Thanks Antoyne, does it knock alot off the top end??

[Mr_S]

Err, no.

I'm running 14/40 and still saw over 140 today.

Private road of course.

[smilo006]

Really useful:
http://ducatisportingclub.com/control/boards/viewthread.php?tid=6030

[antonye]

I've seen 155 on the clocks through France on standard gearing, and was getting it upto 130 on the back straight at Snetterton with the 14/40 combo .... and another gear to go! We decided that as this was probably the longest straight you'd do on a trackday in the UK, it was probably still overgeared.

So I wouldn't worry about losing too much top end!

[Steve]

Antonye,

How does the 14/40 affect the bike's performance as I'm just about to renew my chain etc. Does it give you better acceleration?

[antonye]

No change in performance (it doesn't give you any extra power!) but it does make the bike feel a lot quicker as it sacrifices the top end for acceleration.

I really like it - 150mph in the UK is just unrealisitic so it makes sense to do it.

When I renewed my chain and sprockets, I went for a standard front sprocket (14t - about 16 quid from Ducati) a TSS alu quick-release from http://www.ducati-shed.com/ with 38 and 40 sprockets to match (£118 inc VAT/delivery) and a Tsubaki Omega gold chain (96 link) from http://www.bandcexpress.co.uk/ at about £74 inc VAT/delivery.

However, the heavy duty Tsubaki chain is a bit overkill for the 748 so next time I'd spend the extra tenner or so on a Renthal or DID gold instead as these are just as good but have smaller links and thus lighter.

Drop me a U2U if you need any more info.