|
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
campy record 10 speed
I'm thinking of trying the mt. washington hill climb next year but
will need much lower gearing if i want to make it to the top. I currently have the standard campy record 10 speed set up. I found a campy 13-29 cassette and would like to use a compact drive with a 50/34 up front. (50-34)+(29-13)=32 tooth spread for the proposed set up (53-39)+(25-12)=27 tooth spread for the current set up. I looked at the campy specs and they don't seem to discuss the range of their derailleurs. I checked on the shimano site and they show a 29T max difference and a max 27T rear sprocket for their dura-ace 2800/10 speed derailleur. any thought on where i could find the "range" of the medium campy 10 derailleur? Originally I was going to try my MTB cranks ( cannondale integrated BB) on the road bike, but have since found out there is not enough room for a triple on the integrated BB. So that idea is out. a previous recommendation by Peter was to get a shimano compatible wheel and put a 9 speed MTB cassette with a 34 and get a shimano derailleur to go with it. I will go this way if I can't use the compact drive setup. many thanks charlie |
Ads |
#2
|
|||
|
|||
It is pretty steep. I don't know your fitness, but almost everyone goes up
with at least a 1:1 ratio. Your average speed will be between 3.5mph and 8mph(pro average speed). Use this calculator to find out what your RPM and gearing should be. http://www.panix.com/~jbarrm/cycal/cycal.30f.html Here is the topo of Mt. Washington. http://www.topozone.com/map.asp?z=19...83&layer=DRG25 You might want to get a shimano wheel and a mountain bike cassette and rear der. Reroute the der cable like this: http://www.hubbub.com/ergoleverswshim9.htm I didn't even change the chain. I also recommend something lower that a 39 in the front. My friend and I did it with a compact 34 in the front and 34 mtb cassette in the back. I actually was able to use three or four different gears in the back! When G. Jeanson broke the womens record, she had a 39/34. The rest of us humans should use a lower gear. Eric |
#3
|
|||
|
|||
Hi Peter, Just a question pertaining to the original topic about
dating Campy 10-speed components. I was under the impression that sometime between 2000-2004, that Campy switched from EXA Drive, to Ultra Drive Components (Cranks-Cassettes) I though that it 2003 that the Change was made? With the Change to Ultra Drive, I think all the newer Cranks were then labled with "UD" on them? Also, when was it that Campy switched to Differential rear brakes for Chorus/Record Groups? Thanks Peter, Mark D. |
#4
|
|||
|
|||
charlie- I currently have the standard campy record 10 speed set up.
I found a campy 13-29 cassette and would like to use a compact drive with a 50/34 up front. BRBR Your rear der will work fine with the compact or even the standard 53/39. We do this all the time w/o problem. Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302 (303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene" |
#5
|
|||
|
|||
apoman- I was under the impression that
sometime between 2000-2004, that Campy switched from EXA Drive, to Ultra Drive Components (Cranks-Cassettes) I though that it 2003 that the Change was made? BRBR Ultra Drive and differential brakes both in 2001. The UD was just a little additional 'ramp', inside the ramps already there to aid shifting. Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302 (303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene" |
#6
|
|||
|
|||
Charles Beristain wrote:
any thought on where i could find the "range" of the medium campy 10 derailleur? http://www.campagnolo.com/techinfo.php?did=m ~PB |
#7
|
|||
|
|||
Pete- any thought on where i could find the "range" of the medium campy 10
derailleur? http://www.campagnolo.com/techinfo.php?did=m BRBR But remember this is from the company, who uses very conservative numbers. Not from bike shops that actually try these combos. As I said, a short or medium Campagnolo rear der will work with a compact or standard cranks and the 13-29. A double or triple front der will work also. Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302 (303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene" |
#9
|
|||
|
|||
Charles Beristain wrote:
I'm thinking of trying the mt. washington hill climb next year but will need much lower gearing if i want to make it to the top. I currently have the standard campy record 10 speed set up. I found a campy 13-29 cassette and would like to use a compact drive with a 50/34 up front. Charlie, I know you're a strong rider, but I would heed the others' advice and question whether or not a 34-29 combo is low enough for Mt. Washington. Besides the elevation, you need to factor in the good possiblity of 40 mph headwinds. I'm not sure I understand why you can't just use your mtb cranks and BB (is the integrated BB not compatable with your road frame?) Anyway, my son did Mt. W last month. He has the same Campy ratios as you (but Centaur) and all we did was swap out the road cranks/BB with his mtb cranks and Shimano BB. We used only the 22T chainring, took off the front derailleur, and fitted a Wipperman 10 speed chain. Easy swap and we didn't have to mess around with the rear derailleur. It looked funny, but shifted fine. I assume you also checked out the hillclimb forum for more on this topic? http://www.tinmtn.org/hillclimb/forum/list.cfm? Cheers, John (in Simsbury) |
#10
|
|||
|
|||
Charles Beristain writes:
On 20 Sep 2004 13:02:42 GMT, (Qui si parla Campagnolo ) wrote: http://www.campagnolo.com/techinfo.php?did=m BRBR I searched that tech section prior to asking the question here.. I couldn't find the range for any of the rear derailleurs on the campy site. The range for most campy long-cage derailleurs is 36T. I saw it in the small parts catalogue, i believe. This is kind of a meaningless number, however. The more important number is the maximum cog in the back that can be accomodated. In other words, how long is the cage, and how far away from the axle is the lower pivot bolt ?? Campy specs 29T, but maybe 30T or 31T is possible since these are conservative specs. There are many bikes in existence that cannot shift all the gears. The small - small and large-large gear are typically useless gears as they cause excessive chain wear and for the small-small, maybe even rubbing on the large ring. If you are willing to avoid these gears, you can get an extremely wide range 28-speed or maybe 26-speed using C10 components. You can probably put a 30T in the front and adjust your chain length to work with an inexpensive centaur or veloce long-cage derailleur and get up that mountain, i'm sure. - Don Gillies San Diego, CA |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
FS: Campy Chorus 8 Speed Parts - New Lot Price | oclvboy | Marketplace | 1 | January 2nd 04 12:36 AM |