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friday
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new zealand
Joined: 09/11/2016
Posts: 8

Hi guys
whats the rocker arm ratio for Beemer ? or any ratio of any beemer if known

Ive got some Isetta 600 rockers . I measured machined portion of the body 23.3mm so half = 11.65mm is centre .
I measured from surface out to centre of pad = 19mm so thats 30.65mm
I measured from surface out to centre of adjuster screw = 12mm so thats 23.65mm

30.65 / 23.65 = 1.29 : 1

just curious what ratio is on mc

friday
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new zealand
Joined: 09/11/2016
Posts: 8
found Beemer rocker arm ratio

found Beemer rocker arm ratio 1.39:1

schrader7032
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VBMWMO #7032
San Antonio, TX
Joined: 10/27/2006
Posts: 6331
Can't say that I've ever

Can't say that I've ever heard of this specification. Not sure what it does for me one way or the other. Thinking

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

friday
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new zealand
Joined: 09/11/2016
Posts: 8
lol , hey try finding this

lol , hey try finding this kindve stuff . hot rodders on cars and bikes , they change rockers to change the vavle lift etc the VW guys seem to go nuts on rocker geometry etc .

where I found the ratio .
http://bmwmotorcycletech.info/cams.htm

I still dont know if measurement is taken vertical from pad to rocker shaft to adjuster center or radius is the basis of the distance relative to the shaft center ... still learning

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