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Old 09-14-2017, 12:42 PM
tuxbailey tuxbailey is offline
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Location: Howard County, MD
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Increasing steer tube length with new fork. good idea?

I got my bike used and I worked with Smiley to have it fitted.

The bike was slightly larger than my ideal size but we made it work with a 17 degree stem as well as shorter reach bars (Salsa.) We had to use a 17 deg stem because there wasn't enough steer tube to accommodate more spacers.

I have been thinking about getting a new fork in the near future and I plan to keep the steer tube longer so that I can use a 0 deg stem while maintaining the same reach. Is that generally a good idea? getting a 0 deg steam is purely for aesthetic reason since the fit works as it is now. Will the longer steer tube cause any handling changes?

Bike: Merlin Extralight size 55
HTA: 73.5
Current steer tube length (between top of headset and compression cap): 6.5 cm.
Stem length: 10 cm.
Stem angle: 17 deg.

Based on my middle school level geometry calculation I estimated that the new steer tube should be 2.9 cm longer and the 10 cm length would still work.

Should I do this? Any advice?

Thanks,

Johnny
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Old 09-14-2017, 01:03 PM
StephenCL StephenCL is offline
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Posts: 1,331
Steer tube merlin

Hello,

That Merlin is a great bike. However, as you have noticed, it has a shorter head tube than most other bikes.

My recommendation is that you buy a ti headtube extension from ticycles. This will create the needed stability for the taller steertube.

Then you will need a new fork and stem.

Warm regards,

Stephen
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Old 09-14-2017, 01:23 PM
tuxbailey tuxbailey is offline
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Thanks.

Ti HT extension... that is first time I heard of such things I will check it out.

Thanks.
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Old 09-15-2017, 07:55 AM
OtayBW OtayBW is offline
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A +17° stem, even with no spacers, seems pretty aggressive. Are you sure that this is the best fitting bike for you? If it is in fact just the steerer tube and not frame size that is the problem, I would definitely consider getting another fork. Good luck.
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Last edited by OtayBW; 09-15-2017 at 07:58 AM.
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