Mysterious Crank ID?
06-20-20, 07:53 AM
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Mysterious Crank ID?
Hey all. I just bought a vintage italo MTB frame sight unseen. Except for one grainy picture. It came with a box with Deore MT60 parts so it should stem from the late 80s.
Now I'm dying for the shipment to get here. In the meantime I can't stop thinking about the crankset on the frame. The chainring bolts are within the crank arm part and I haven't seen a design like this before.
Does the internet hivemind have any idea what kind of crank this may be?
Of course I will update you, once I get my hands on the frame. Patience is a virtue, but curiosity killed the cat!
Cheers
Now I'm dying for the shipment to get here. In the meantime I can't stop thinking about the crankset on the frame. The chainring bolts are within the crank arm part and I haven't seen a design like this before.
Does the internet hivemind have any idea what kind of crank this may be?
Of course I will update you, once I get my hands on the frame. Patience is a virtue, but curiosity killed the cat!
Cheers
06-20-20, 11:29 AM
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Shimano used that approach for the granny ring on Alivio and Altus in the late 1990s but it's not either. My general impression is a hybrid crankset but that may just be the influence of the guard on the large chainring. It could be one of the many Taiawanese brands that seemed to come out of the woodwork in the later 1980s.
06-20-20, 12:43 PM
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Yeah, maybe I'm SOL until the frame arrives. I browsed through tons of different vintage cranks today and only the Sugino Impel triple came close, but not quite there. If it is from some fringe Taiwanese brand that only existed for a couple of years, info is probably hard to come by.
06-24-20, 05:05 AM
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Turns out it is a Shimano crank, albeit not a very common one. The name is FC-C500 from the second half of the nineties. I think it belongs to the Nexave Group, so it's low to mid-tier. All three chainrings are welded together and secured by the five-bolts we see here. BCD should be 86 mm.
