RoadBikeReview.com's Forum Archives - General


Archive Home >> General(1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 )


On-line training log?(10 posts)

On-line training log?skimoviestar
Jun 1, 2001 1:13 PM
Anybody out there know of a good on-line training log that is tailored to cycling?
re: On-line training log?Ken56
Jun 1, 2001 1:19 PM
Try biketracker.com, I use it all the time. It's great for any type of exercise program, but as it's name implies, bicycling is the main focus.
Ken
re: On-line training log?Lou M
Jun 1, 2001 2:03 PM
this looks like a pretty good tool. I normally keep my stats on excel, I'll give this a shot.
ironcoach.comcurtis
Jun 1, 2001 3:36 PM
I've been using ironcoach.com this year. It's primarily set up for triatheletes, so it includes running as well as cycling, but it allows you to customize. I have included in-line skating on my account. It gives daily, weekly and yearly totals. Very simple to use.
Planetrun.comwhygimf
Jun 2, 2001 8:20 AM
Plug in rides/runs/etc. Will give you day by day/monthly.

Haven't seen the others listed, but this site works.
re: Tire and chain lifeRich Clark
Jun 1, 2001 3:13 PM
Even if you've got 5,000 miles on that chain, if it really measures precisely 12" from pin-center to pin-center, then there's no reason to replace it IMO. That's some great chain.

I think you can safely ride those tires until the casings show through. That's usually preceded by a visible darkening in the rubber, fair warning that the time has come.

Wear rates are going to depend on riding style, road conditions, and rider weight as much as anything else. A heavy rider who routinely hammers up hills and shifts aggressively is not going to get 5000 miles from a chain.

RichC
Campy ChainsMeDotOrg
Jun 1, 2001 3:28 PM
My bike shop talked me into buying a Record chain as a replacement. I was a little skeptical, but after 3,000 miles with no stretch, I'm impressed. If you take care of a campy chain, it will take care of you.
re: Tire and chain lifeMel Erickson
Jun 1, 2001 3:58 PM
Chains are a no brainer. You can measure their stretch and replace them when they've gone too far. Tires are less precise. I don't usually make a judgement on only one measure, unless there is an obvious problem. The condition of the sidewalls (cracking, cuts, etc.), cuts or other tread abrasions, wear (squaring off), history of flats, general age and use all come into play. A squared tire, in and of itself, is not a reliable measure unless you know how much rubber is left. Unless you measure the tread when new with a calipers how do you know? Obvious signs are casing showing through or, as previosly mentioned, a darkening of the tread. In addition everyone has a different comfort level. Some are willing to risk more than others. I don't feel it's a waste to replace tires sooner than later. I guess that puts me in the low risk category.
re: Tire and chain lifeKerry Irons
Jun 2, 2001 5:54 PM
Chain wear to 0.5% elongation (1/16" in 12") is the standard replacement point. I just changed my Campy Record chain as it had reached this point after 12K miles. Changed cogs too. Some argue for more frequent chain replacement to lengthen cog life, but I suspect they are using cheaper chains that wear a lot faster. The low end Shimano chains on my commuter bike seldom last more than 3K miles, and they are really shot at that point.

Tire wear is pretty personal, but I let them go until the tread is just worn through on the rear, and then rotate the front to the rear. Front's really don't wear out, they just age. Some claim more flats with worn tires, but this has not been my experience. How long a tire will last depends on your weight, riding style, and road surface. I weigh about 180 and I get around 6K miles on a new rear Conti GP 23mm tire. My wife weighs 120 and gets 10K+ miles on the same tire. Lots of rough pavement, hard cornering, standing, sprinting, etc. will wear tires faster. Since rear tires wear due to power transmission, more powerful riders will wear them faster too. Finally, different tires have different rubber thickness and rubber compounds. A Michelin/Conti comparision shows the Michelins to have much thicker side walls, and therefore thinner tread at the same tire weight. Therefore, I get roughly 1/2 the mileage from a Michelin as I get from a Conti, using the same "casing just starting to show" measure of worn out.
So, how exactly do you measure a chain for wear?bianchi boy
Jun 2, 2001 8:02 PM
I have about 2,000 miles on my Ultegra chain and just bought a new one, but haven't installed it yet. If it doesn't need replacing yet, I'd rather keep using the old one until it's worn out. Can you measure any 12" on the chain to check for stretch? Is it the same distance for Shimano as well as Campy chains? Can I measure it while it's on the bike, or do I need to take it off and lay it on a flat surface to measure?

While we're on this topic, how often should you replace your cables? I've got about 2,000 miles on them as well.