crank arm

I’m restoring a Sunbeam ( based on the Online Sunbeam Museum (pictures) it’s probably a ‘1939 Sunbeam Ladies Royal Light Tourist’). Ive managed to remove the wheel and I I now removing the crank arms. The Cotter Pins are out 🥵. But question: - Which way the lock ring should be turned to...

Hi, I'm new here so I'd like to start by saying hello and introducing myself, I'm John. I restored my first MTB last year, a Giant Chicago. Recently the left crank arm started to loosen constantly and I guess, is damaged to the point where it won't stay tight for long. Being my first build and...

I polished these cranks up and whilst the chainrings have plenty of life in them, the 42T black one has lost lots of colour. The chainrings are shimano J42,J32 & J22. Small chainring is almost new. Length is 175mm. BCD for larger two rings is 94mm and small is 58mm. Price: £85 posted in the...

Hi, Sorry if this is obvious but I just want to confirm before damaging anything -- am I looking at a self-extracting crank here? Is it a case of tightening what I think is a retaining ring and then using a hex key in the centre bolt to remove? I can see that the hex fitting is already quite...

i do have a single right black 170 fc-m730 crank arm, but i miss the matching left one. i'd be happy to source this part here. please check all drawers and boxes. it should still be black and not too srcatched. swap deals very appreciated. thx