|Head tube size pros & cons...||mlbd|
Sep 3, 2002 4:00 AM
|What are the advantages/disadvantages of the two common head tube sizes (1 inch vs 1.25 inch)? I'm thinking about get a new bike that i would use primarily for racing (road races; circuit races; no crits). The Look kg361 is tempting--on sale at Excel for $899. It has 1 inch head tube...is there a problem with that? Thanks.|
|re: Head tube size pros & cons...||cyclopathic|
Sep 3, 2002 5:07 AM
|1.25? you mean 1.125 (1 1/8 inch)
1 1/8 gives 26% stiffer interface. Stiffnes on 1" isn't really a problem, maybe if you're a crit racer pushing 200lbs and need lotsa spacers on carbon steer Look fork. Other issue the 1" is being phaced out, it will be harder to find parts in 2-3 years.
1" is a great value I wouldn't worry if I were on market for new frame.
|re: Head tube size pros & cons...||rbb|
Sep 3, 2002 5:24 AM
|Actually, Chris King now makes a headset that will allow you to run a 1-1/8th" steerer tube on a 1" sized headtube. They also make one for using a 1" steerer tube on a 1-1/8th" sized headtube. So, even if in a couple years you need a new fork, you should be okay!! Good luck!
|re: Really..........||Rusty Coggs|
Sep 3, 2002 5:40 AM
|what's it called and where do I find one?|
|sure about that??||C-40|
Sep 3, 2002 8:33 AM
|CK makes the "Ddevolution" headset that allows a 1" steering to be used on a frame made for a 1-1/8".
Using a 1-1/8" (28.6mm) steering tube on a frame made for a 1" steering tube is a different matter. The head tube ID is only 30.2mm. To put a 28.6mm steering tube in this head tube, the cup skirt thickness would have to be less than .8mm (1/32"). Too thin for aluminum and marginal even if it were steel. I see no such product listed on the CK website.