Thinking of switching to a 43t rear on my monster s2r. From what I calculate it should be roughly equivalent to a 14t front sprocket without the possibility of rubbing the swingarm. Is this correct?
Nope - up three rear is ~ equal to one down front.
1/15 = 6.7%
3/41 = 7.3%
(2/41 = 4.9%)
[thumbsup]
stopintime is right 15/45 is the same as 14/42
check out
http://www.gearingcommander.com/ (http://www.gearingcommander.com/)
Quote from: Heath on March 14, 2010, 04:58:52 PM
15/45 is the same as 14/42
Thought stock rear was 41?
What are you starting with in the rear....a 41 or 42?
If 41 then a 43 would be +2. That's not too far off. Certainly better than stock.
Stopintime is correct though.....1 on the front is equal to 3 on the rear.
Stock is 15/41 for S2R 800 and 1000s
Well I am all confused.. gearingcommander said 15/42, a 2005 s2r800 manual I have says the same.
Ducati's website says (bare with me)
2005 s2r800 15/42
2006 s2r800 15/41
2007 s2r800 15/41
2006 s2r1000 15/41
2007 s2r1000 15/41
2008 s2r1000 15/41
Feels kinda weird to learn something new after owning my bike so long. :p
How much can I expect it to throw the speedo off? Can I get it reflashed?
None, the speedo sensor isn't changed by gearing. Someone else feel free to chime in on why, I don't know all the details.
Quote from: Airborne on March 15, 2010, 01:46:18 PM
How much can I expect it to throw the speedo off? Can I get it reflashed?
The speedo takes it readings from the spinning wheel.
Quote from: Heath on March 14, 2010, 04:58:52 PM
http://www.gearingcommander.com/ (http://www.gearingcommander.com/)
Awesome website btw
Quote from: stopintime on March 15, 2010, 01:52:30 PM
The speedo takes it readings from the spinning wheel.
yep. If you look at your caliper mount you will see a wire running to a black thing attached to the caliper mount. That thingy is a magnetic sensor that 'watches' your rotor nuts/studs go by. A little computer math and bam, you get your speed. The speedo reading has nothing to do with gearing or engine speed. Only your rear wheel speed