530 sprocket/mph guide for 17" wheel + 180/55 17 tyre

[debben1]

Just thought this might be a usefull guide (we get lots of questions on this)
figures show mph at different rpm depending on which gear ratio is used. The speeds are for a 17" wheel with a 180/55 tyre

frt/rr -- 1000 -- 5000 -- 8,500 -- 10,000 rpm
17/45 - 13.21 - 66.05 - 112.27 - 132.08
17/44 - 13.51 - 67.55 - 114.82 - 135.08
17/43 - 13.82 - 69.10 - 117.47 - 138.22
18/45 - 13.99 - 69.95 - 118.91 - 139.85
17/42 - 14.15 - 70.75 - 120.27 - 141.52
18/44 - 14.30 - 71.50 - 121.55 - 143.03
17/41 - 14.50 - 72.50 - 123.25 - 144.97
18/43 - 14.64 - 73.20 - 124.44 - 146.36
17/40 - 14.86 - 74.30 - 126.31 - 148.59
18/42 - 14.98 - 74.90 - 127.33 - 149.84
17/39 - 15.24 - 76.20 - 129.54 - 152.40
18/41 - 15.35 - 76.75 - 130.47 - 153.50
17/38 - 15.64 - 78.20 - 132.94 - 156.41
18/40 - 15.73 - 78.65 - 133.70 - 157.33
17/37 - 16.06 - 80.30 - 136.51 - 160.64
18/39 - 16.14 - 80.70 - 137.19 - 161.37
17/36 - 16.51 - 82.55 - 140.33 - 165.10
18/38 - 16.56 - 82.80 - 140.76 - 165.61
17/35 - 16.98 - 84.90 - 144.33 - 169.82
18/37 - 17.01 - 85.05 - 144.58 - 170.09
18/36 - 17.48 - 87.40 - 148.58 - 174.81
18/35 - 17.98 - 89.90 - 152.84 - 179.81
Regards, Steve

[GUYZED]

Whats up Steve couldn't you sleep

[debben1]

Hello Guy, where you up early or up very late, some people count sheep, I count revs and mph

[GUYZED]

Hello Guy, where you up early or up very late, some people count sheep, I count revs and mph

A bit of both Steve - i work nights

[Pigford]

Very good Romeo.............. so wots the conversion for us 'old skool' using a 630 chain set up

[debben1]

simples Pigford,

conversion for us 'old skool' using a 630 chain set up

.......... is to fit a 530, its lighter, stronger, less expensive, more readily available and provides better clearance.