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PostPosted: Sat Dec 22, 2012 10:50 am 
Retro Guru

Joined: Wed Mar 24, 2010 12:30 pm
Posts: 871
Location: Great Yarmouth
Hi guys.

Hope someone here can advise me please.

I am putting together an Airbourne though I am not quite sure which model it is. Maybe someone can tell from below.

Image

In the picture it has a USE Alien Ti post marked 27.2 which I believe is the correct size. I can insert it with twisting and a saddle as leverage but it is very 'grindy' going in and quite tight.

I have a second post which I prefer. Like the colour more and on my scales it is only 25g heavier than the Alien. A fair trade I think. This is also marked 27.2 but just slips in by itself.

I have ordered a new clamp from CRC size 31.8mm.

Now, at last the question. With the second post that slips in so easy am I thightening the clamp too much with the possibility of frame damage?

Sorry. Perhaps that is a tad too long but thought the detail may help.

In anticpation, thank you.


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PostPosted: Sat Dec 22, 2012 4:47 pm 
retrobike rider
retrobike rider
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Joined: Fri Aug 08, 2008 2:36 pm
Posts: 16750
Location: Yorkshire, England
Have you given the post and the inside of the tube a good scrub clean.

But it may well just be the USE is slightly thicker on it's tolerance and the other is slightly thinner.

Can you measure them in any way to see. (vernier ?)



No idea at all with Airborne though.


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PostPosted: Sat Dec 22, 2012 5:24 pm 
Gold Trader / rb Rider / Special
Gold Trader / rb Rider / Special
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Joined: Mon Aug 31, 2009 12:26 am
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Location: Rurally close.
Lucky strike?


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PostPosted: Sat Dec 22, 2012 6:11 pm 
Retro Guru

Joined: Wed Mar 24, 2010 12:30 pm
Posts: 871
Location: Great Yarmouth
cyfa2809 wrote:
Lucky strike?


Thank you. Just googled image it and the pics confirm that. Why did I not think of that eartlier!


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PostPosted: Sat Dec 22, 2012 6:15 pm 
Retro Guru

Joined: Wed Mar 24, 2010 12:30 pm
Posts: 871
Location: Great Yarmouth
[quote="FluffyChicken"]Have you given the post and the inside of the tube a good scrub clean.

But it may well just be the USE is slightly thicker on it's tolerance and the other is slightly thinner.

Can you measure them in any way to see. (vernier ?)


/quote]

Thanks Fluffy. Feels smooth inside as far as I can feel. Will check how rough the post is.

Do not have a gauge. Bit technical for me :)


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