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Girder Fork Specifications | |
| Listed below are the dimensions of the bushes and pins required during the overhaul of M20 front forks. Also included are the specifications for the fork main spring and figures for testing the poundage. | ||
| Fork bushes | ||
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Outside
diameter… .688”-.690” Inside diameter… .5615”-.5630” Length… 1 7/16” Clearance..Bush to link pin… .0005”-.004” Acceptable clearance limit at overhaul… .005” Condemnation limit (bush to link pin)… .010” Ream bushes to finished size after fitting. Quantity… 4 off |
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Side
fork damper disc thickness (new)… .110” Replace when wear exceeds … .015” |
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| Fork spring | ||
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Free
length before fitting… 10” Free length condemnation limit… 9”(or poundage as below) To compress the spring to 8” a load of 320-330lbs. should be required Condemnation limit… Condemn spring when a length of 8” can be achieved with a load of 300lb. or less Minimum distance between coils when assembled… 1/2" |
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| Fork links | ||
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Dimensions
between centres (top links)… 3 3/8” |
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