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Old 07-30-09, 06:31 AM   #1
tonka.toy
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Trek specified seat heights

Sorry if this is not a mechanics type question but I think people who know about bikes are more likley going to know about this topic.

I'm going to treat myself to a Madone 5.2

Trouble is I'm tied to one chain of stores and the bikes are rarer than hens teeth. I'm 6'2" and planning to get a either a 58 or 60 cm frame. I my preference is for larger frames but if they can't get any 60s then I may have to go for the 58. My concern is that the saddle height on the 58 may not be long enough. which raises this question

On the geometry pages of the Trek site they specify min and max height of the saddle. max height on the 60cm frame is 83.5cm, on the 58cm it's 81.5cm. Is this a measure from center BB to saddle rail or saddle top/heighest point?

Long legs here has his saddle top about 83cm above the BB - so my concern is that the smaller frame would not be a good fit.
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Old 07-30-09, 06:51 AM   #2
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You can probably get saddle height right on a 58 with a long enough seatpost but I would recommend against getting a frame that is too small for you. Your saddle may end up signifcantly higher than the handlebar, which effects reach and riding position and ultimately comfort on the bike. I am not sure why they couldn't order a 60cm frame for you.

Last edited by DOS; 07-30-09 at 07:52 AM. Reason: oops
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Old 07-30-09, 07:17 AM   #3
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Two things you need to consider (among many):
1. Top tube length - you indicate your torso is shorter. This might point you towards the 58cm.
2. What saddle to bar drop do you ride with? Recreational rider with little to no bar drop points toward 60cm. Crit racer = 58cm.
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Old 07-30-09, 07:41 AM   #4
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These are end of season bikes and there's not many in circulation in the stores network of shops, what they do have is going fast. The stores here tend to stock smaller frames lots of 56-58s but have to order in the larger sizes. So couple those factors together and my chances of getting both sizes in at the same time to compare are slim.

I've ridden a trek 60cm 1700 which is OK for me but that has a conventional seat post. My queery is more to do with how Trek define the measurement they give on their site.
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Old 07-30-09, 08:19 AM   #5
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The Madone is probably not the best bike for a person with a short torso (long legs). Trek racing frames tend to have long top tubes relative to their height. This is a problem that I have.
A bad fit will always be a bad fit.

Al
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Old 07-30-09, 09:37 AM   #6
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FYI, http://cgi.ebay.com/Trek-Madone-5.9-...QQcmdZViewItem
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