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 )


Need help selecting a bike(6 posts)

Need help selecting a bikeBobcat
Jun 13, 2001 10:24 PM
I am buying my first road bike and i am having trouble fitting myself to a bike because of a longer body and shorter legs. I'm 5,7" With a 28" inseam. My goals ae to start doing tiathalons ASAP (avid Mt. biker), & Weekly group rides (as i progress) my price range is around $1200 for my first bike. Any suggestions for a bike?????thanks
re: Need help selecting a bikepaper warrior
Jun 14, 2001 12:51 AM
Giant TCR's with their limited selection of sizes are supposed to have relatively long top tubes though i've never ridden one.
re: Need help selecting a bikePsyDoc
Jun 14, 2001 6:34 AM
I think that Lemond's have a longish toptube as well. You may want to check out the geometry at http://www.lemondbikes.com/ Also, make sure you have taken your inseam measurement correctly. See Colorado Cyclists'information on fit at http://www.coloradocyclist.com/bikefit/ When they state that you should "Place a book or carpenter's square between your legs with one edge against the wall, and pull it up firmly into your crotch..." they mean to pull up till you cannot pull up any further. In other words, hit the pubic bone. Try to use a book or carpenter's level with a 1.5" width. You can find some decent deals on bikes on e-Bay, but you need to be careful.
The long (and short) top tube myth...C-40
Jun 14, 2001 5:18 PM
A quick review of the geometry charts from companies alleged to have long or short top tubes, usually shows that the differences are often less than 1cm, which is pretty insignificant.

The Lemond 53cm frame has a 54.5cm top tube, with a 73.25 degree seat tube angle. A Colnago 53cm frame only has a 53.4cm top tube, but a steeper 74.3 degree seat tube angle. If you calculate the difference between the top tubes, compensating for the difference in seat tube angle, you find that both frames are virtually identical in effective top tube length.

Lemond top tubes are often called long and Colnagos are often called short. In many cases, neither is accurate.
re: Need help selecting a bikenotes_clp
Jun 14, 2001 7:14 AM
I second the LeMond recommendation.. You might be able to find a Buenos Aires for a little more than you are looking to spend or maybe a Tourmalet and then upgrade the fork..

Most import is to get fitted by your LBS, I would assume you have a relationship with one due to the MT Biking,, so talk to them and ride as many road bikes as it takes to find one that "talks to you".

There have been several messages posted previous that will help you, here are some other links worth reading.

http://www.chainreactionbicycles.com/roadbiketestrides.htm

http://sheldonbrown.com/articles.html

http://www.peterwhitecycles.com/fitting.htm
recheck inseam....C-40
Jun 14, 2001 5:01 PM
I'm 5'-7" with a 32-5/8" inseam. Obviously my legs are on the long side, but most standard 55cm frames fit me fine.

See coloradocyclist.com for info on proper inseam measurement. If your inseam is really only 28 inches, when properly measured, there's no way you will find a convential frame that you can straddle, without the top tube being too short.

Some of the sloping top tube frames available today may be useable. They would help reduce the standover height, but you may still have to settle for very little standover clearance. A custom built frame may be your best bet.