changing sprockets makes speedometer invalid?
E Montague server
afm199 at earthlink.net
Wed Oct 6 15:21:24 PDT 2010
It never is. They always read high. And I have a 120 70 front. Of they are all different diameters anyway.
On Oct 6, 2010, at 3:14 PM, Chris Burgess wrote:
> The statement applies to bikes who doesn't have a pick up on the front wheel.
> So for the SV650 if you change from the 120/60 front wheel to a 120/70
> and depending on the brand..your speedo isn't what the factory
> On Wed, Oct 6, 2010 at 3:13 PM, Jo Rhett <jorhett at fastlizardracing.com> wrote:
>> I have repeatedly seen comments on here about different sprockets and how the odometer is inaccurate. I'm confused. The sensor is on the front wheel -- how would running different sprockets change the validity of the odometer? Or am I confusing this with changing front wheels?
>> Reason I'm asking is that I need to replace the sprockets & chain on my street bike. I have a whole 520 kit with a 45 rear sprocket sitting here. Is going from a 44 stock to a 45 rear going to affect my speedometer accuracy? I'd rather not, as I currently live in Sunnyvale where cops are *BORED* and are known for giving tickets for 5mph over.
>> Yes I know the speedometer is "optimistic" at best. I've done a lot of testing and it appears to be consistently 10% high -- so 44mph reported is 40mph, 66mph reported is 60mph, etc. I'm very used to that.
>> Jo Rhett / velociRaptor Racing
>> #553 WERA
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