Cycling for Noobs

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MudMeanderer Oct 2020 9:54pm, 21 Oct 2020 1,985 posts	MudMeanderer It doesn't particularly matter that size (number of teeth on sprocket) differs. As long as they're not vastly different in the size of biggest or smallest sprockets, the derailleur will most likely absorb the difference. Assuming you're running a 10sp chain, I also doubt you'll get issues of the chain rubbing on adjacent teeth on the 9sp cassette. If you were trying to change gears, you may have trouble as the spacing between sprockets differs between 10 & 9sp. The only issue I can see is if you can't find an indexed position for your 10sp cassette that corresponds to one of the sprocket positions on the 9sp one. If this was the case, you could end up with the chain jumping between sprockets, or would have to tweek the cable every time you changed wheels.
Totriornottotri Oct 2020 7:14am, 26 Oct 2020 1,083 posts	Totriornottotri Good morning noobs and legends! I need a new tyre(s) for a road bike. 18mm internal rim width. Reading various online items it suggests I can use 25 or 28mm tyres. I have only ever used 25mm. I know I need to check clearance through the gap. Given 28mm is in vogue and this will be my winter bike I think I’ll move to the wider tyre. Is there anything I should be aware of? Hard to decipher reviews from marketing bumpf!
Dvorak Oct 2020 11:20am, 26 Oct 2020 21,136 posts	Dvorak My bike, a fairly roady road bike from around nine years ago, before the current vogue for fattening up your tyre, came with 23mm tyres. I'm on my 3rd set of 25s since then, and a 28 would not squeeze in. My latest tyres (Michelin Pro Endurance 4, on the sturdy side) actually measure in at 26mm across and a mm higher as well and there's very little clearance. So yes, measure, and be aware that not all tyres come in at their nominal sizes. In practice the tight clearance is fine - unless you are not always on the road. My old tyres could pack with mud and leaves between tyre and frame, the new ones, even more so. Something about tyre sizing (and rims) from Sheldon Brown sheldonbrown.com PS 18mm rim - that's what my MTB wheels have! They are very old, though.
Dvorak Oct 2020 11:48am, 26 Oct 2020 21,137 posts	Dvorak * Michelin Pro4 Endurance. I had a good read of this site whilst deciding bicyclerollingresistance.com My priority definitely leans towards not getting a puncture over all out speed. They replaced Schwalbe Durano DD (which had a surprisingly low rating on the above site). They never punctured and were a good tyre (and considerably cheaper). However they were squaring off and feeling a little dead on the road. One more thing - the Michelins were so, so much easier to fit than the Scwalbes.
Totriornottotri Oct 2020 1:01pm, 26 Oct 2020 1,086 posts	Totriornottotri Thanks! Yes - not interested in speed on this bike.
XB Oct 2020 2:19pm, 26 Oct 2020 10,568 posts	XB I hope this hasn't been asked before, but has anyone got a suggestion for mud/rain guards for a road bike. Ideally I want a set that are easy to install and remove. Thanks.
fraggle Oct 2020 2:33pm, 26 Oct 2020 2,578 posts	fraggle Search for ass saver ?
Corrah Oct 2020 3:04pm, 26 Oct 2020 6,058 posts	Corrah I use an ass saver, still get some splashing but not that bad
1step2far Oct 2020 3:07pm, 26 Oct 2020 5,935 posts	1step2far I've got these, fiddly on 1st fitting but easy to get on and off after that: https://www.wiggle.co.uk/sks-raceblade-pro?lang=en&curr=GBP&dest=1&sku=5360762139&kpid=5360762139&utm_source=google&utm_term=&utm_campaign=Shopping+-+All+Products&utm_medium=base&utm_content=mckv skcR7uZYL_dm mcrid 295292024608 mkw mmt mrd 5360762139uk mslid &mkwid=skcR7uZYL_dm&pcrid=295292024608&prd=5360762139uk&pgrid=60972124962&ptaid=pla-522337863584&gclid=Cj0KCQjw59n8BRD2ARIsAAmgPmKIvKj1w0gkLRiajcuYUU_CwP3XtMlw9ltXFhhwf0ObxNZFZwBgKnIaAoedEALw_wcB
1step2far Oct 2020 3:08pm, 26 Oct 2020 5,936 posts	1step2far Trying again wiggle.co.uk