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Time for a new brake drum?
- ujmrider
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- Bluemeanie
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1980 KZ650F1, Bought new out the door for $2,162.98!
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- Patton
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Im going to put a drum brake setup on my 77 kz1000. The drum Im planning to use is from a 76 kz900 parts bike that had 18k on the clock. Inside the drum is marked max dia. 200.75 mm and it now measures 200.025. That seems really close,but it looks good otherwise. Should I use it or find a better one? I dont know what those measured new.
Per FSM, new was 200.00mm-200.185mm. Whereby existing 200.025mm is still new.
FSM also confirms service limit @ 200.75mm
If helpful, inch conversion is 7.784"-7.881" with 7.904" service limit
Good Luck!
1973 Z1
KZ900 LTD
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- loudhvx
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1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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- PLUMMEN
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Still recovering,some days are better than others.
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- ujmrider
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- RonKZ650
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321,000 miles on KZ's that I can remember. Not going to see any more.
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- ujmrider
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- PLUMMEN
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Still recovering,some days are better than others.
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- ujmrider
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- bountyhunter
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Getting thinner reduces the strength of the drum and the amount of heat it can handle before it saturates (and fades out). A thinner drum is also more easily warped, but your point is valid: they do more or less draw a line and say it's gone at point X when in fact, it still has most of it's capability left.I'm curious, mechanics like bluemeanie can probably answer. What does it really hurt if the drums are majorly worn. I'd bet my old KZ650 is worn way beyond the limit, but brakes still work just fine?
1979 KZ-750 Twin
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