Speedo 48mm 2:1:1 Drive Ratio MPH Black Face With Stainless Body 140 MPH Maximum.
NB:: All clocks must be mounted with rubber to avoid vibration damage.
THIS IS A GUIDE ONLY: Fits most (see below) any Japanese or European model of motorcycle that use a standard speedo cable with M11mm screw-on cap x 2mm square inner cable to fit a front wheel speedo drive.
The 2:1:1 ratio is worked by 2 revolutions of the cable for every revolution of the front wheel.
To accurately check ratios you need to turn your speedo drive once, if your inner speedo cable turns once, it's a 1:1 ratio, twice & it's a 2:1:1 ratio. Raise your front wheel and check before purchase!
Works well on most Japanese bikes with an 18" or 19" front wheel apart from some Kawasaki VN models and some Yamaha Xs's and other Yamaha models that use a unique 2.93:1 ratio.
The 2:1 drive ratio is the standard ratio for American bikes with a front wheel speedo drive. Japanese bikes use a 2.1:1 drive ratio but the 2:1 will work fine. Your indicated speed will just be a little inaccurate compared to your actual speed.
Rubber Mounted Bracket
Includes Standard Steel Bracket
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