|Need a shorter saddle||dave11|
Feb 15, 2003 5:40 AM
|A fit kit last year by a local pro told me I need to get further forward on my current bike, both for pedal stroke and F/R weight distribution. He also said I would be limited in how far forward I could get because the horizontal distance between BB center and tip of seat has a regulated minimum of either 5 or 6 cm by USCF or someone similar. I switched to a Thompson post (no set back) and slid the seat as far forward as I could, but the fit kit said I needed to go a bit further ideally. New bike this year has steeper seat tube angle. This is a better fit but it reduced the BB to seat tip dimension. Is there a shorter seat out there? I currently ride a flite and like the fit of it.
I have heard rumors of people acutally hacking off the tip of a seat to make it shorter, though I've never actually seen that. That sounds like a potential pain in the rear/groin waiting to happen.
|Try a Gipiemme, Nashbar carries a few of the||SnowBlind|
Feb 15, 2003 5:55 AM
|basic ones. At under $30, you could try it with little risk.
The lighter ones are a bit harder to find, but www.zonabici.com carries them.
They are build almost exactly like the Selle Italia's but with a shorter nose by about a centimeter. I am comparring the G. Nitric to a Tri-matic, FWIW.
|I measured mine||SnowBlind|
Feb 15, 2003 5:04 PM
|against a trans am, the back end is (basically) the same shape, but the tip is a full inch shorter.|
Feb 15, 2003 7:04 AM
|I think finding the right saddle position fore/aft is dependent on seat tube angle and getting a proper seatpost. If a Thomson straight post is not enough, try a setback and reverse it so it becomes a forward post.
Other than for looks, why exactly do you need a shorter saddle?
Feb 15, 2003 7:30 AM
|Because according to the guy I talked to here, one of the cycling regulators, I think it was USCF, specifies a minimum horizontal distance between the end of the seat (projected downward) and the center of the bottom bracket. That distance was either 5 or 6 cm.
Whichever it was, I am at it. So if I slide the seat further forward, or flipped a setback post around and mount the seat where I need it, I will have less than the 5 or 6 cm required. If I had a seat that essentially had a shorter nose it might buy me a cm or two. Get it?
Feb 15, 2003 8:35 AM
|You could rely on manufacturer dimensions, but they aren't always correct. You could compare them side by side, but that still wouldn't be definitive, because of the differences in how the rails are mounted and the rail length.
So probably you would have to mount one on and measure to be sure.
FYI, I went from an old Flite Gel Ti to a Era Ti and the nose further behind the BB, because of differences in the rails.
Feb 15, 2003 9:11 AM
|that I will need to check a few. I'll give the Era Ti a look. Thanks for the input...|
|length does not tell all...||C-40|
Feb 15, 2003 11:15 AM
|Just because a saddle is shorter doesn't mean that your knee will be in the desired position once the saddle is moved to the UCI maximum forward postion. Every brand sits differently.
The other fallacy in this idea is that some fitter can predict an optimum KOP position. What baloney. Unless you ride the recommended position and know that it produces a measureable improvement in performance, it's wasted effort.
For that matter, who checks saddle position that closely? Does every rider have to pass a plumb-bob check before racing?
|Saddle Setback||Jon Billheimer|
Feb 15, 2003 5:53 PM
|Unless you're racing under UCI rules you don't have to worry about saddle setback. USCF doesn't recognize UCI rules, so don't worry. The UCI setback rule by the way specifies 5 cm as the minimum. In order to help time triallists get a little more forward without breaking the 5 cm rule Fizik makes a shortnosed saddle, called the Chrono.|| |