Takingabreak
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have fun. https://sheldonbrown.com/
Hi Peachy,Now then Jaffa, looks like you’ve already got plenty of good advice from the gang.......
Hi Big Cheese,What is this mystical 'technology'? Buying a 'new' bike leaves you stuck with current multiple and often conflicting standards often with far higher servicing and wear. If you were to spec a new bike with a steel frame and half decent parts, expect to have to fork out quite a bit.
Your CB is still relevant. Gears are still operated by cables (unless you decide on full Di2), greasy chains still shift up and down ramped cassettes, nothing has really changed.
The rear wheel looks like its a 'Shimano Uniglide' cassette hub. If it is, the body is held in by a 10mm hollow bolt. Taking the axle out first you can then undo the bolt and the freehub body comes off with it. It can be replaced with a later wider Shimano cassette body which would then allow for anything up to a 10 speed cassette to be fitted. You can then go mad with shifters and mechs to suit. If so, you will need to redish the wheel and space out the axle to suit the frame but at the same time, you could also fit a quick release axle.
Apart from the rear hub, your current wheels are also no different to what you would end up with now, even buying new you would barely be replacing like for like.
Those Exage mechs will shift with 7/8/9 spd Shimano MTB shifters (the front will need fettling as not all cable pull/ swing ratios match, even within groupsets)
Theres lots of road 110 BCD chainring options and Spa Cycles do good quality chainrings so you can use the existing cranks (do not worry about mixing chainrings marked '10spd' with 9 or 8 spd chains).
If you go the drop bar route, you can use 10spd Road bar end shifters with the Exage Country mechs to keep the retro look
You can also go the 1x10 option and keep much of the original parts but you would need to sort the rear wheel. However, unless you live in the Peak district, you may find yourself spinning out at relatively low speeds
So there you go, just to confuse you more!
*Heres a 1987/88 Holdsworth (from the same company that built you CB) running 9spd shifters and 1989 Shimano Mountain LX bits
https://www.retrobike.co.uk/attachments/hardest-track-jpg.516592/