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Old 08-10-16 | 08:01 PM
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CliffordK
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From: Eugene, Oregon, USA
Oops, I copied the wrong wheelbase above... and the numbers now add up a little better.

If you laid the two frames on top of each other, and aligned the bottom brackets, then the rear dropouts should line up, I think (same chainstay length and BB drop).

The dropouts on the fork of the 62cm frame will be about 4.5mm in front of those on the 60cm frame.

Likewise, the head tube on the 62cm will be about 4.5 mm in front of the HT on the 60cm frame.

The top of the seat tube will be set back another 5mm or so on the 62cm frame due to less of a seat tube angle, and the effective top tube from the seat tube to the head tube will be about 10mm (1cm) longer on the 62cm frame.

The "Reach" is an odd number.

If you set the stems at the exact same height/angle on the two frames (2cm higher on the 60cm frame), then the effective reach will be longer on the 62cm frame.

On the other hand, say you slam the stem on the 60cm frame, then you'd have to use a more angled and longer stem to get the bars of the 62cm frame to the same spot.
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