Buzz... Wrong! Single gear.531db wrote:44/16 fixed on my most often ridden bike.
Look Ma - no gears!
What gearing do you use?
- sogood
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Postby beeb1506 » Fri Jun 06, 2008 2:47 pm
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: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.
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- LuckyPierre
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Postby LuckyPierre » Fri Jun 06, 2008 3:18 pm
I used the 12-27 purely because I needed it - I didn't have the strength / fitness to get around Canberra without gearing that low. When I first started riding I was 16kg heavier than I am now and had carry-over problems from lots of knee surgery. Standing to pedal on hills is really tough until you have some level of fitness, so I needed gearing that would let me tackle them by sitting and spinning. It's been quite a while since I used my lowest gear, but it was difficult to give my 'safety blanket' away.beeb1506 wrote: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: ... 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 ...
It's only been two weeks and I haven't done any real climbs (Coppins Crossing is short and steep, but doesn't really figure on our local climbs list) but I'm hoping that I've reached a milestone in my progress.
I'm not going to fuss if I have to put it back on - the 12-27 cassette is pretty smooth across its range (from memory, it goes 12-13-14-15-17-19-21-24-27 - yes, I'm a 9-speed kind of guy). The 3 tooth changes were a bit clunky under pressure, but barely noticeable otherwise.
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).
Litespeed Classic - 3Al/2.5V titanium tube set, Record 9-speed groupset, Open Corsa Evo CX
Alchemy Diablo - Columbus Zonal tubing, Ultegra 9-speed groupset, UltraGatorskins
Gitane Rocks T1 - U6 tubing, Deore/XT groupset, CrossMarks
Alchemy Diablo - Columbus Zonal tubing, Ultegra 9-speed groupset, UltraGatorskins
Gitane Rocks T1 - U6 tubing, Deore/XT groupset, CrossMarks
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Postby beeb1506 » Fri Jun 06, 2008 3:55 pm
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?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).
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Postby LuckyPierre » Fri Jun 06, 2008 4:21 pm
Doh! Silly me - I should explain. Two different bikes! I have an Alchemy Diablo (Columbus Zonal frame with Ultegra 9-speed gear) and a Litespeed Classic (3Al/2.5V titanium with Record 9-speed gear). I used the Campagnolo groupset on a steel Hillbrick for a while, but couldn't resist the titanium bling.beeb1506 wrote: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?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).
Litespeed Classic - 3Al/2.5V titanium tube set, Record 9-speed groupset, Open Corsa Evo CX
Alchemy Diablo - Columbus Zonal tubing, Ultegra 9-speed groupset, UltraGatorskins
Gitane Rocks T1 - U6 tubing, Deore/XT groupset, CrossMarks
Alchemy Diablo - Columbus Zonal tubing, Ultegra 9-speed groupset, UltraGatorskins
Gitane Rocks T1 - U6 tubing, Deore/XT groupset, CrossMarks
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- LuckyPierre
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Postby LuckyPierre » Fri Jun 06, 2008 4:44 pm
If only you knewmikeg wrote:All you young fit blokes!
Litespeed Classic - 3Al/2.5V titanium tube set, Record 9-speed groupset, Open Corsa Evo CX
Alchemy Diablo - Columbus Zonal tubing, Ultegra 9-speed groupset, UltraGatorskins
Gitane Rocks T1 - U6 tubing, Deore/XT groupset, CrossMarks
Alchemy Diablo - Columbus Zonal tubing, Ultegra 9-speed groupset, UltraGatorskins
Gitane Rocks T1 - U6 tubing, Deore/XT groupset, CrossMarks
- sandman
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Postby beeb1506 » Fri Jun 06, 2008 5:34 pm
That's very close to what I'll have once I fit it this weekend, looking forward to trying it out.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....
Pete
- LuckyPierre
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Postby LuckyPierre » Fri Jun 06, 2008 5:38 pm
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.
ps. I can put one together, but I use that lovely Campagnolo stuff.
Litespeed Classic - 3Al/2.5V titanium tube set, Record 9-speed groupset, Open Corsa Evo CX
Alchemy Diablo - Columbus Zonal tubing, Ultegra 9-speed groupset, UltraGatorskins
Gitane Rocks T1 - U6 tubing, Deore/XT groupset, CrossMarks
Alchemy Diablo - Columbus Zonal tubing, Ultegra 9-speed groupset, UltraGatorskins
Gitane Rocks T1 - U6 tubing, Deore/XT groupset, CrossMarks
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Postby lukas » Wed Jun 11, 2008 3:12 pm
I recently switched to 50/34 compact / 12-27 cassette. I can spin up just about anything now. The compact gearing frustrates me a little bit at times, especially when shifting chainrings, but I love it when the road tilts upwards. I don't think I've used the 34/27 combo once, but it's nice to know it's there.
I'm closing in on buying a Cervelo R3, and will probably stick with the 53/39 / 12-25 it comes with, at least for a while.
I'm closing in on buying a Cervelo R3, and will probably stick with the 53/39 / 12-25 it comes with, at least for a while.
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- LuckyPierre
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Postby LuckyPierre » Thu Jun 12, 2008 9:58 am
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.
Litespeed Classic - 3Al/2.5V titanium tube set, Record 9-speed groupset, Open Corsa Evo CX
Alchemy Diablo - Columbus Zonal tubing, Ultegra 9-speed groupset, UltraGatorskins
Gitane Rocks T1 - U6 tubing, Deore/XT groupset, CrossMarks
Alchemy Diablo - Columbus Zonal tubing, Ultegra 9-speed groupset, UltraGatorskins
Gitane Rocks T1 - U6 tubing, Deore/XT groupset, CrossMarks
- Andrew69
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Postby Andrew69 » Thu Jun 12, 2008 9:16 pm
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.
Ive barely managed to use the 53x12 combo on my bike (slight downhill)
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Postby 531db » Thu Jun 12, 2008 9:44 pm
For example, Shimano use the 'Road Standard' 130mm BCD on 'standard' cranks, eg 53/42 and 52/39, and 'MTB Standard' 110mm BCD on 'compact' cranks, eg 50/36, 48/34 etc.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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