|CAMPY Record 10-speed||DAN BB|
Jul 25, 2001 8:21 AM
|My bike (Serotta Legend) is equipped with the Campy 10-speed group. With the chain in the "small" front chain-ring and the rear in the "second" to the smallest chain-ring, the chain rubs on the inner portion of the "large" front chain-ring. My LBS informs mew that this is to be expected...is this true?
|It doesn't happen to me. I've occasionally, mistakenly,||bill|
Jul 25, 2001 9:20 AM
|and regrettably gone into the dreaded small ring, small cog combo to no ill effect. I sort of look down, say "oops," and change (there actually may be a little rub, but I think it's the derailer cage, not the big ring, because, depending on the trimming, there is not always a noise).|
|what rings do you have?||Rusty McNasty|
Jul 25, 2001 9:58 AM
|if you have a 39-53 tooth setup, there isn't a whole lot of space, but this shouldn't happen. Your chainline is probably off. Have you or anybody else re-installed the rear axle?|
|re: CAMPY Record 10-speed||ixiz|
Jul 25, 2001 11:07 AM
Even 9 speed my 2nd smallest cog rubs the outer chainring if i pedal hard.
|crossed up||keith m.|
Jul 25, 2001 12:00 PM
|why would you need to ride with this gear combo? switch to the big ring and change gears. You will wear out or possibly break something when you ride with the chain so crossed up. It even says not to do this in my owners manual. The closest I come to doing this is the third gear, big ring, or the seventh gear, small ring. I too am using campy ten.|
Jul 25, 2001 2:25 PM
|My C-40 has a very slight amount of rub in the little ring and next to the smallest cog, so I use it infrequently. For me this is a 39/12 which is virtually identical to a 53/16. Better to use the 53/16.
I think this is one of the trades-off from moving the big ring closer to the little ring, to accomodate the narrow 10 speed chain.
I doubt there is anything wrong with your setup.
|re: CAMPY Record 10-speed||Cliff Oates|
Jul 25, 2001 5:51 PM
|I don't experience this on my bike (Waterford w/Chorus). It might be worth having your LBS experiment with spacers inside the fixed bb cup to shift the chainline over a bit.|
|re: CAMPY Record 10-speed||Lanakila|
Jul 26, 2001 2:19 AM
|It is common but does not occur on every bike. The main contributing factors are the length of the bottom bracket spindle and the length of the chain stays. The shorter the chain stay, the greater the angle of the chain to the outer cog. This is only made worse by shortening the bottom bracket spindle. It is entirely normal on some bikes and will not occur on others. IF it really bothers you your LBS can put in spacers on the right side of the bottom brakcet to adjsut the chainline a bit. Personally, I would stay out of those last two gears and use a gear with a better chain line.|
|re: I need to go super fast!!!!||LC|
Jul 25, 2001 9:33 AM
|A deep aero rim is best for faster speed. A spining wheel creates a lot of drag.|
|Buy front and rear disk wheels, and hope for no X-wind!!;-) NM||Cima Coppi|
Jul 25, 2001 9:51 AM
Jul 25, 2001 10:08 AM
|I'd recommend the Ksyrium for all around performance any day. Deep section wheels *can* be faster, but have some problems, too. Cross winds present a huge handling problem, which can be dangerous and slow you down.
One person calculated that the differnce between deep section and ordinary wheels over the course of the Furnace Creek 508 (508 miles) was 6 minutes, assuming you don't get blown off the road.
Riding in groups, next to a road edge, next to car traffic, can be very difficult in crosswinds with deep wheels. I'd save them for road closed time trials.
Jul 25, 2001 11:55 AM
|Can't say much about the Dream. Mine is a C40, but I think they have common geometry. The Dream is slightly heavier, like 100 grams, and the Dream's fork is a bit heavier, too.
The Colnago feels more like a Porsche 911 - rock solid and still fast, compared to the Mazda Miata feeling of the EV2 - lighter, but just not the same solid feel.
I ride with a buddy on a Dream that flat out kicks my butt on every hill. So, it can't be that bad. :-)
|sounds little heavy||Dog|
Jul 25, 2001 2:05 PM
|I thought the frame was round 1250, and fork 500. Still not super light, but not 2000.
Jul 28, 2001 12:27 PM
|List weight on Colnagos tend to be WAY off.
My Star fork weighed 435gms without the plug or cap! The Flash fork weighs about 600gm uncut. The actual weight of the Y2K dream+ frame was around 1400gm for a 54cm. The new Airplane frames are said to be lighter though. :)
Nice bike regardless of the weight #'s. Besides, 100-200gms is not going to make any difference in the big picture.