531db wrote:44/16 fixed on my most often ridden bike.
Look Ma - no gears!
Buzz... Wrong! Single gear.
LuckyPierre wrote:I'm late to this thread, but I've just moved to 12-23 cassettes on both my bikes - both have 53/39 chainrrings. I ran a 12-27 cassette on my 9-speed Ultegra-euipped bike with no problems, although I did need to lengthen the chain when I first put the 12-27 on as I was replacing an 11-21 cassette on a used bike.
beeb1506 wrote:LuckyPierre wrote: ... I've just moved to 12-23 cassettes on both my bikes - both have 53/39 chainrrings. I ran a 12-27 cassette on my 9-speed Ultegra-euipped bike with no problems ...
So why did you make this switch, were you not using the lower ratios or did you not like the 'holes' in the gearing?
LuckyPierre wrote:ps. I used 12-27 Shimano 9-speed gear (Ultegra) initially, then switched to 13-26 9-speed Campagnolo (Record) and I'm now using 12-23 9-speed Campagnolo (Veloce I think).
beeb1506 wrote:LuckyPierre wrote:ps. I used 12-27 Shimano 9-speed gear (Ultegra) initially, then switched to 13-26 9-speed Campagnolo (Record) and I'm now using 12-23 9-speed Campagnolo (Veloce I think).
I didn't think the 2 were in any way compatible - did you change the hub, brake levers, cassette, RD, and chain all in one go?
mikeg wrote:All you young fit blokes!
sandman wrote:I'm looking at a new bike that has 53/39 -> 11/28. Just checked Sheldon's site, tells me a lower ratio to climb and a better top end than my compact 50/34 -> 11/23. Be interesting how many holes I find in different terrain....
You would run out of the 12 with a 53/39?LuckyPierre wrote:While we're crapping on about gearing - most of the softies like me run 12-25 with their compact cranks, which would give you the lower ratio for climbing, but would be worse on the top end. Given that you pretty much scampered up Mt Ainslie, I can't see you needing a lower ratio for climbing anyway - I'd look at something more like 53/39 chain rings and a 12-25 cassette, but expect to run out of the 12 pretty quickly. Is there such a thing as an 11-25?
ps. I can put one together, but I use that lovely Campagnolo stuff.
LuckyPierre wrote:As well as the smaller chain rings, the 'bolt circle diameter' is also smaller, so you can't just put small chain rings on an existing crankset. Clever people these product designers, aren't they.
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