I just got a M2Racer seatpost!!!

Discuss light weight issues concerning road bikes & parts.
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spaniardclimber
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Joined: Fri Dec 05, 2003 10:15 am

by spaniardclimber

Can you measure the wall width of the post at the top and at the bottom, please?
Thanks,
SC

by Weenie


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Paco Bonnin
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Joined: Thu Jan 13, 2005 4:22 am
Location: Madison, WI

by Paco Bonnin

spytech wrote:here is another pic, he states that it is only 170lb limit.
Image


Lol, at 195lbs, I don't think I'll be rocking one of those anytime soon
:lol:

It's a pity the design doesn't provide much support for the rails, carbon and tubular ti rails might not last as long :(

I have seen campy record carbon seatposts fail (two of them), but it was caused by a stress riser generated by not using the offset clamp. I always install carbon posts with the clamp rotated 180 degrees. If not possible I ream the inside of the frame with a flex hone, then clean it with acetone to remove any grease residue and I scuff the unexposed part of the post with a 3M pad. Doing those things and greasing the binder bolt allow me to torque the bolt to a minimum, without risk of the post moving.
BURN YOUR LEGS, NOT OIL!

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Samu Ilonen
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by Samu Ilonen

jmh wrote:In your picture, has the screw on the left been shortened?


No, It would impossible or hart to assemble seat or adjust seat angle.

I removed my first seat post tube fom mold on morning today. It weights 74g/280mm. It's taper wall on lenght and rotational dimensions.

It's just for sample post and I'm getting better materials for it in next week.

Since ti mtb version is 143g/330mm, this road 280mm version should be easilly under 90g. (calculated to be 75g but I'm not sayin that, yet.) First one will be 95-98g for start.

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spytech
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by spytech

Paco Bonnin wrote:
spytech wrote:here is another pic, he states that it is only 170lb limit.
Image


Lol, at 195lbs, I don't think I'll be rocking one of those anytime soon
:lol:


i know how you feel, i am 165lbs now, but sometimes i go up to 170 - 172, i dont think i would feel comfortable at the limit. but still for some - its a nice alternative to the New Ultimate seatpost

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