HELP Just bought my new Planet x bike and there are problems

Just took delivery of my new Planet x pro carbon sl and went out on it for the first time yesterday and there seems to be a major problem.......
The post size is quoted at 31.8 and thats what planet x have supplied. I set up the right saddle height tightened the collar and off i went for a 15 mile loop - i had to stop 3 times to adjust the post as it had slipped down upto 3 cm each time even though the collar was tight!
On getting home i had a closer look and it seems to me that the seat tube internal measurement is greater than 31.8 - the post slides all the way in - this isn't normal is it - i've never had this happen before - can i do anything or is it just a case of giving them a call monday morning when they are open?
Any ideas? thanks in advance, jonathan
The post size is quoted at 31.8 and thats what planet x have supplied. I set up the right saddle height tightened the collar and off i went for a 15 mile loop - i had to stop 3 times to adjust the post as it had slipped down upto 3 cm each time even though the collar was tight!
On getting home i had a closer look and it seems to me that the seat tube internal measurement is greater than 31.8 - the post slides all the way in - this isn't normal is it - i've never had this happen before - can i do anything or is it just a case of giving them a call monday morning when they are open?
Any ideas? thanks in advance, jonathan
0
Posts
the post doesn't touch the sides of the seat tube
and
The clamp has no more room for tightening - ie no space (metal on metal)
i can only summise there has been a batch made with the incorrect seat tube size - its that different!
cheers
In the end, I bought a new seatpost ( I was planning on doing this fairly soon as the bottom of the post had started to corrode away for some reason....apparently quite common with the planet-x posts), a Thomson Elite and a new seatclamp (purely cos the old one was stiff and a bit grimey). This has completely rectified the problem.
I should add that the Thomson post is really quite special in my eyes....a masterpiece in engineering.
I hope this helped.
Planet-X (now winter-bike)
Great club in and around the Warrington area.
once again all your help much appreciated.
J
I've tried 2, same result!
the hairspray worked in a fashion but as you say far from ideal........
i'll give them a call tomorrow morning.
cheers
J
lol
i also tried an easton ec90 and its done agood job of scuffing that up too.
good luck, me thinks you'll need it
J
Your problem sounds a little more severe !
A slipping seatpost means your bike is virtually unrideable. Must be a bummer.
I feel sure they will help.
Keep us updated.
sounds to me like you are missing this bit...
cheers
to the rats in the basement,
its not that far '
I'm not sure that this'll help but mine is fine - rode it for an hour last night, 2 or 3 seatpost height adjustments to fine tune the riding position, and it stayed nicely in place at all times. No marking of the post either. I can get a pic of the seatpost/clamp area if you think it'll help. best of luck getting this sorted! It's a medium frame with an FSA SLK in-line carbon post fwiw.
Oh, and persevere if you can, because the bike is epic when it's working right!
Sorry, didn't see the pm before writing the reply, YGPM!
as I mentioned I had the same issue and then oddly enough swapped the PX post for an FSA carbon like your good self ...it slipped, it creaked ...............god did it creak ......then I got a torque spanner and tightened to 6nm ( think the range is 5-8 ) along with loads of carbon grip grease ...
no slip no creak ...sorted !
ps ..I love my Planet X
Great club in and around the Warrington area.
It's rather like a clamp for a reflector or rear light but much neater. I thought it was a funny addition at first but it has meant that my saddle has never slipped down and I don't need to tighten the seat clamp too tightly onto my carbon frame. The torque I've applied to my seat clamp is less than 5Nm as my Ricthey mini torque key hadn't clicked when I decided it was tight enough when last adjusting.
Maybe there's a market for these seatpost collars as stopping carbon posts slipping does seem to be a problem?
Gav.
Like a streak of lightnin' flashin' cross the sky,
Like the swiftest arrow whizzin' from a bow,
Like a mighty cannonball he seems to fly.
You'll hear about him ever'where you go.
HGope you get it sorted.
contacted PX and they sent out a different style of collar - this one works perfectly!
People at PX couldn't have been more helpful, 5 stars from me - i will be back!
cheers
Interstingly I did measure my seatpost diameter as I was playing with my new micrometer, and it was an alloy P-X post and measured 31.5 not 31.6 - either way a nice firm fit and no slippage.
1)Planet X SL Pro carbon
2)Nelson Pista Singlespeed
3)Giant Cadex MTB
4)BeOne Karma MTB