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will a 7 speed screw on freewheel fit the hub ok, bearing in mind OLD is 130mm
Yes, but as Mr_E says you will probably have to swap spacers around and re-dish the wheel. Also, 7-speed freewheel hubs are a liability, as there is about a yard of unsupported axle between the dropout and drive side bearing. It would be much better to get a new cassette hub (Sora is fine if you're trying to keep the budget low), and that would also facilitate 8/9/10-speed which is even more flexible and future proof than 7-speed.
gbj_tester-
that's really handy to know - i'd completely overlooked the prospect of something with a road hub. i've found one prebuilt on ebay that uses a 130mm claris hub and it's relatively cheap. I also already have a spare cassette that could go on, so could potentially offset the cost of the wheel a little. i'm also a bit more confident I could get a quality 8 speed shifter and derailleur second hand (which would be future proof as you say) compared to the 6 speed stuff which is either new and looks fragile or second hand 'vintage'.
spoke to decathlon as per @Mr_E 's suggestion and they've confirmed my rear wheel and hub / spacing is exactly the same as their 6 speed stock model. so 6 speed would still be a fall back option.
time to make a handy spreadsheet and have a proper look. thank you both.
pizzarat
I am hoping to convert my single speed foldy bike to 1x7 gears (it is my most aesthetically undesirable, but seemingly most useful bike). It has served me well on and off for the last year. But the current gearing is cack, and the chainline is awful so it's noisy.
Decathlon already sell pretty much the same bike with 6 speeds, but I'd like to use 7 as I think it will give me a few more shifter and derailleur options to choose from...?
The frame already has the various bits and pieces needed for cable routing, plus a derailleur hanger. The rear wheel has a single sprocket screw on freewheel which can be removed, and, presumably a replacement block screwed back on in it's place.
TLDR / here's where I'm stuck :
will a 7 speed screw on freewheel fit the hub ok, bearing in mind OLD is 130mm. Or should I stick to a 6 speed (boo) setup much like the ones they already sell?