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I am converting and old Dutch bike to fixed. I build new rear wheel and i need to change the old Shimano Nexus Chainring.
I only managed to find a picture in the following link, I have never seen something similar before?
http://forum.poehali.net/index.php?boar ... adid=93910
My question, is there a separate Nexus chainring or is fixed in the crank?
where can I buy a Nexus chainring, if so...? -
Could it be that the frame is wider in the bottom bracket area so the BB cups sit further out on the axle?
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This is a mistery!!! I just found the email with the order. It is clear, SKF JIS 107! Should be fine. It does notbmake sense, now I will have to take out the bottom bracket out and check the label...?
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This I understood, though, will 1.5mm create much more friction? would it be noticeable?
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Shall I buy a new bottom bracket 107 mm or it is better to get a 110mm one? I think to buy a Shimano UN55 BB 110mm. Would a 110mm BB change much the chain line?
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My Miche Primato Advanced crankset has bottomed out on the bottom bracket. I have a Dolan Seta track frame with SKF JIS 107 bottom bracket, as per (JIS) recommendation of the manufacturer. It also makes a creaking noise on every pedal stroke.
I want to say that when tighten the bottom bracket bolts the crank arms go so deap on the bottom bracket axle that they get in contact with the bottom bracket cups.
Anyone experience something similar? Shall I go for an 110mm bottom bracket?
I was also thinking to go for a Shimano BB-UN55?
thanks!!!! at this price I will get a new crankset for my old Dutch bike! I may buy the Sturmey Archer which is even cheaper!