- Why does the big ring feel better?
I've never known why, but riding in the big ring always feels better to me. It feel less flexy (?) and more direct. I've long suspected this is purely psychological – but is it? When all the "no need for a big chainring" types start arguing on here I always think of how rubbish it'd feel. Am I imagining things? I probably ride 75% on road, but ride offroad a lot, without fail I always wear the big ring out fastest…Posted 10 years agoLMTMember
There is a hill at Cannock, its something i use as a challenge, stick the gears into the big ring and sprint up the hill, my mates hate it as one minute im there next gone. This is the only time i use the big ring, i have thought about ditching it for a double and a bash and i suppose if you only ride trail centers or downhill it could be done, but having the extra gear is always handy!Posted 10 years ago
I like to be able to go offroad if I want to, and I mean proper rocky get a puncture on a 'cross bike offroad, or extend the route home to Stainburn or whatever. FWIW I raced 'cross for 7 years so am pretty familiar with 'cross bikes. Anyway, I was asking about the phenomena described!Posted 10 years agogrievoustimMember
its cos the chain is less slack
when I'm riding my hardtail over a flatish fast peddaly bit – which is also bumpy enough for me to want to get out of the saddle, I put it in the big ring. when I leave it in the middle ring I can feel the chain slapping about and its harder to pedal in smooth circles, you can feel the tension in the chain coming and going as the chain bounces about
if you don't have a big ring its not an issue as your chain will be shorter anywayPosted 10 years ago
njee20 I got asked once wether there was a mechanical advantage to being in the big ring rather than the equivilent middle and rear combination, but wasnt clever enough to work it out, my theory was the leverage was the same as the BB is the fulcrum and the pedal arm length the leverage, so my guess was there wasnt a mechanical advantage, discounting drag and flex in a ring.
Would be quite interested to find the truth though..Posted 10 years agoSamMember
Because the chain is spread over more teeth it is more efficient mechanically, it runs smoother because there is less tension on the chain for a given ratio and power input. This is quite noticeable (IME) when using different cog/ring combinations to get the same ratio on a singlespeed. eg, I have a 38/22 in preference to 32/18Posted 10 years ago
It's a little known fact that Jan Ullrich actually won the TdF on a singlespeed – 53×11. He rode the whole race in that one gear and the mechs were locked down to avoid any shifting unpleasantness. Leaving the other chainring/sprockets on was just to keep the sponsors happy.Posted 10 years agoanotherdeadheroMember
He rode the whole race in that one gear and the mechs were locked down to avoid any shifting unpleasantness.
Wasn't that more to do with Jan's insistence that the mechanical support crew be jettisoned that year in favour of a crack team of Black Forest Gateaux chefs?Posted 10 years ago
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