I had to pull the cranks off to get the pedals loose, they were nicely seized on This highlighted a few things - sand coming out of a bottom bracket is never a good sign, and the rear rim is quite thin. I've had a re-think and will replace the wheels in case I want to use it on the road on occasion. I found some super cheap ones on Amazon with Shimano hubs and random rims I'd not heard of but they'll do for the turbo I'm also looking at how cheaply I can pick up the bits to go 2x11 - I've already got a bargain pair of 105 5800 mechs en route from eBay for £19.50
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