View Full Version : Exhausting options before pursuing custom...
Current set up has an 86cm center BB to top of saddle. I am 6'4" tall with a measured 38" inseam currently riding a Lemond. With a 130x6 'positive' rise stem Deda stem with 35mm spacers getting ~5cm drop from top of saddle to top of bars. The head tube length of my current bike (including the top and bottom bearing cups of pressed in headset) is 24cm. Effective top tube is 606mm.
I don't want to go behond 130mm stem and the 5cm drop doesn't really bother me much, but I would like to get 'out and up' more. Any suggestions?
Creakyknees 02-17-2008, 04:57 PM Sure, scan the manufacturer geometry charts looking for an effective TT longer than 606.
For a shorter guy I'd say get a compact and size up but you're already at the largest end of the range for most compacts.
For traditional frames, I know Riv has some 62's that may be long enough in the top, so there must be others.
homebrew 02-17-2008, 06:20 PM Go custom, you will never regret it. The joy of riding a bike that fits is the best value for your money. Mega spacers and such effect the handling. Find a good fitter (get a referal!) its the best money you can spend and go for it. It took me 30 years of trying to fit on stock frames and for 30 years I was sort of satified but after going custom I will never waste my money on a stock frame again. Its not just the geometry, they can build to your riding style and needs. Want a stiff frame? Something comfotable? Stable or responsive? Need fenders? You get to choose!
David Kirk 02-17-2008, 07:46 PM Just 5 cm of bar drop for someone your size is pretty small. Most folks your size (like me, I'm 6'5") run more ........like about 8 and that's not considered a huge drop.
What is the the reason you want to go up more? How is the bike used?
All that said you won't find too many stock bikes out of a box out there with a top tube longer than 606.
Dave
dahowe 02-17-2008, 09:56 PM Current set up has an 86cm center BB to top of saddle. I am 6'4" tall with a measured 38" inseam currently riding a Lemond. With a 130x6 'positive' rise stem Deda stem with 35mm spacers getting ~5cm drop from top of saddle to top of bars. The head tube length of my current bike (including the top and bottom bearing cups of pressed in headset) is 24cm. Effective top tube is 606mm.
I don't want to go behond 130mm stem and the 5cm drop doesn't really bother me much, but I would like to get 'out and up' more. Any suggestions?
I am a reasonably regular proportioned guy. That being said I just 'mocked' up my future Seven purchase today. What an odd geometry; short tt, the seat is waaay back and it has a long stem. WTF I could just ride a bigger frame! The guys in the LBS were looking at me pretty strange while we set it up. Went for a test ride...
Holy crap, this is incredible, The most comforable ride I have ever been on. I would never normally fit myself this way, I was grinning every stroke. Up hill, down hill, fast, slow, I never had the desire to change my position at all. It fit perfectly. Pretty wierd, but I am starting to really believe in this custom crap.
Seven seems to be the way I would go if I go custom....Axiom SG. I don't know why, but I would simply prefer to not go custom if I could ($$$$ mainly). The Effective TT is not the real issue, but being able to get upright a little more (neck issues not related to riding, but not helped by riding either) would help. There are a couple bikes that are available that actually have slightly longer top tubes and head tubes, but I don't want to bias this thread.
Well, this is interesting...after taking all the measurements (double checking) the following is what competitive cyclist has spit out...I don't see anything odd, oh wait, except that according to them, my current bike is too big!
The Competitive Fit The Eddy Fit The French Fit
Seat tube range c-c 61.7 - 62.2 62.9 - 63.4 64.6 - 65.1
Seat tube range c-t 63.6 - 64.1 64.8 - 65.3 66.5 - 67.0
Top tube length 57.9 - 58.3 57.9 - 58.3 59.1 - 59.5
Stem Length 12.2 - 12.8 11.1 - 11.7 11.3 - 11.9
BB-Saddle Position 90.7 - 92.7 89.9 - 91.9 88.2 - 90.2
Saddle-Handlebar 57.9 - 58.5 58.7 - 59.3 60.4 - 61.0
Saddle Setback 6.8 - 7.2 8.0 - 8.4 7.5 - 7.9
Seatpost Type NON-SETBACK SETBACK SETBACK
I really don't see anything in these numbers that would suggest that I have to go custom. the only thing that may seem high is the seat tube length, but what does it matter if you are showing 6" of post or 7" of post as long as the drop is not outrageous...any thoughts??
dahowe 02-18-2008, 08:23 PM Well, this is interesting...after taking all the measurements (double checking) the following is what competitive cyclist has spit out...I don't see anything odd, oh wait, except that according to them, my current bike is too big!
The Competitive Fit The Eddy Fit The French Fit
Seat tube range c-c 61.7 - 62.2 62.9 - 63.4 64.6 - 65.1
Seat tube range c-t 63.6 - 64.1 64.8 - 65.3 66.5 - 67.0
Top tube length 57.9 - 58.3 57.9 - 58.3 59.1 - 59.5
Stem Length 12.2 - 12.8 11.1 - 11.7 11.3 - 11.9
BB-Saddle Position 90.7 - 92.7 89.9 - 91.9 88.2 - 90.2
Saddle-Handlebar 57.9 - 58.5 58.7 - 59.3 60.4 - 61.0
Saddle Setback 6.8 - 7.2 8.0 - 8.4 7.5 - 7.9
Seatpost Type NON-SETBACK SETBACK SETBACK
I really don't see anything in these numbers that would suggest that I have to go custom. the only thing that may seem high is the seat tube length, but what does it matter if you are showing 6" of post or 7" of post as long as the drop is not outrageous...any thoughts??
Nope, that is fine. Especially in this day of compact frames, those long posts are getting more common. There is no right answer here. Check out your LBS. Ask them for a bike that best meets/fits your specs from CS and your preferred drop. Have them mess with the seat location, stem length/angle, and spacers for you to get it where you want it. Ride it, and make the call.
I like the CS fit numbers for me as well. The trick is finding the bike to meet the specs and what trade offs you may need to make. For example, my spec requirements from Seven look just like that of a R3 with the exception of, suprise, head tube length. I have to do some pretty out there stuff to get a reasonable (for me) of 5-6 cm drop on the R3 or on the RS for that matter. I can get close (but wheelbase gets long) with a Roubaix. Neither the Cervelo or the Specialized however ride like a Seven Ti.
I am on falling off the fence somewhat towards custom. Race bikes, or race wanna-be bikes, race very well. They are sexy, get a lot of press and are impressive. The problem is that I don't race, and have to put up with some ride qualities I don't like when I purchase one of these for my needs and type of use. I want the quality of these race bikes, but I want that quality in the areas that mean most to me. And that is not dropping 15 seconds on the climb. I like the way I can dial in both the geometry and the ride qualities in a custom. But that is just my perspective when it comes to spending my money. We each have to make that call for ourselves.
homebrew 02-19-2008, 04:32 AM I hear you say your current bike is the wrong size, your suffering from pain and your still guessing size questions. Go see a good bike fitter. Have him look at all your issues and riding style. Get a referel from other customers as not all bike fitters are the same. A good fitting should take several hours. Being cheap now will be costly in the long run. As an aside, Seven makes some great bikes but they are costly. Many frame builders are around that can give you a great custom build within your budget
I hear you say your current bike is the wrong size, your suffering from pain and your still guessing size questions. Go see a good bike fitter. Have him look at all your issues and riding style. Get a referel from other customers as not all bike fitters are the same. A good fitting should take several hours. Being cheap now will be costly in the long run. As an aside, Seven makes some great bikes but they are costly. Many frame builders are around that can give you a great custom build within your budget
I have an appointment on Friday for a much more thorough fitting....
I have an appointment on Friday for a much more thorough fitting....
The smart thing to do, if changes are suggested, is to try them would using whatever combination of stem angle and length are needed. If those changes prove to work out, then you could consider ordering a custom to duplicate that position without an oddball stem setup.
I don't put any value in those online fitting numbers. For one thing, a TT length without a seat tube angle means nothing. Without a handlebar reach, you can't recommend a stem length. If it turns out you need more reach, there are 140mm stems made, although a +6 angle makes the horizontal length about 10mm shorter. You might need longer reach bars to get any more reach.
|
|