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I'm after a bit of advice.
I bought a thomson elite seatpost and when I received it (eBay) it had been chopped down a bit. The max insertion line is still visible but not much after that.
I've been offered a partial refund if I keep it but I'm torn between sending it back for a full refund or keeping it.
Can anybody tell me if this sounds safe? I don't want to stress my seat tube.
It's 338mm long, at the absolute max I would use it It's inserted 124mm into the frame with 214mm between top of seat post and centre of the clamp.
If it helps it's a 27.2mm post in an 18" 2012 kona kula (scandium).
Any advice would be appreciated.
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Isn't google brilliant...
If it helps - max line on a Thomson post is about an inch on a 367mm post - say 10% to be very safe
If you're riding on a chopped down post then 10% is about 34mm
124mm should be absolutely fine and I'd have no problem riding that (I ride close to that now with a shimmed post and it seems ok - tho I am looking for a new post but only cos I need some layback)
All in my opinion tho - someone may come along and tell you how their mate is now a eunuch cos a superstar post collapsed on them
Rule of thumb is 100mm minimum insertion, measured from top tube not top of seat tube.
Sounds like it should work but might be a bit tight...
Personally, I like the seat post to extend down below the seat cluster but from the numbers you quoted, it sounds like it would.
Ah - nice
Hehe...it appears my post has been chopped cos the line on mine ISNT 100mm from the bottom
Luckily it fits more than 100mm in - ignore what I said above!
Cheers for the picture. I appreciate a bit of sarcasm too so thanks for that as well. Funnily enough, I am aware of google.
I looked at the thomson site first and saw that but the seatpost I already had in the frame has a minimum insertion of 115mm so I was just after second opinions really as the difference seemed a lot. The old one isn't a thomson though.
Thanks for the replys guys. I'm leaning towards it being okay but just wanted a few opinions.
I'd only have it that high on the road. I lower it by another 20-25mm otherwise.