seat posts- long length, minimal insertion

jonAiRMESH · May 2007

ok, so i like my XC bikes to have a bit of a low stand over height so i can still throw them about, but this means for the longer uphills etc i need an uber long seat tube to get the saddle height needed [I'm 6'3]. All the 'long' seatposts i have seen/bought require a larger amount of minimum insertion of the post, which defeats the object of having a long post. Are there any seat posts which are long that don't need such a large amount of insertion?

ride like you nicked it

Big Red S · May 2007

You are aware of why there's a minimum insertion, aren't you? Of course it's going to increase as the post length increases.

You will find, though, that as the posts get longer, and the minimum extentions get longer, so too does the maximum extention.

What frame is it?

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jonAiRMESH · May 2007

yeah i know why, its just irritating. its a merlin malt 1 freeride frame, which is 16".

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ROCHA · May 2007

Some seatposts come in 450mm length and 90mm minimum insertion thus resulting in a 360mm length above seat tube clamp. BB to seat clamp in a 16 inch bike is about 410mm.410mm+360mm=770mm=aproximately 30.5 inches. You're quite tall but I doubt you can ride with your seat any higher than that without experiencing some unnecessary pain.

ride_whenever · May 2007

I've just ordered a 410mm thomson post because i'm fed up of bending cheap ones and have a jump bike for xc, which gives me lots of standover room for my pendulous balls! I'll let you know how that comes up, it is coming from the states though (œ41 oh yeah) so may be a while.

My Scott

My Single Speed

Always remember to pick your Uni according to the local trails or you'll be stuck with nowhere to ride for three years!

secondtimeuser · May 2007

The 410mm Thomson posts have a ridiculously tiny minimal insertion. Probably what you want [:)]

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ride_whenever · May 2007

I spoke to the retailer and they said that the give lengths are usable post, not total length.

My Scott

My Single Speed

Always remember to pick your Uni according to the local trails or you'll be stuck with nowhere to ride for three years!

dave_s · May 2007

I'd agree with STU, get a Thomson post
They're pure quality and they do them in 410mm lengths which are plenty long enough for most uses.

jonAiRMESH · May 2007

hey guys, thanks for the help. I'll look out for the thompson ones

ride like you nicked it

ride_whenever · May 2007

aspire velotech (from the states) are really cheap.

My Scott

My Single Speed

Always remember to pick your Uni according to the local trails or you'll be stuck with nowhere to ride for three years!

haroexone · May 2007

the minimal insertion limit of the frame is more important than that of the post!

Big Red S · May 2007

It's not more important, you've just got to use whichever of the two is the longest.

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haroexone · May 2007

thats what i meant!

ride_whenever · May 2007

I'd say it was less important because you *can* cut down the extension of the seat tube to decrease the minimum insertion, but cannot reduce the minimum insertion of the post. Hang on, that wouldn't actually change the available seat height would it?

I have finals tomorrow so my brain is a little scrambled and i cannot think.

My Scott

My Single Speed

Always remember to pick your Uni according to the local trails or you'll be stuck with nowhere to ride for three years!

haroexone · May 2007

what do you mean by"cut down the ext of seat tube"?

ride_whenever · May 2007

Thinking about it, i was wrong, but my idea was to chop of a bit of the seattube that extends beyond the toptube, as generally you have to have post inserted past the toptube in the frame. But whatever you have to do then you have to have the post in that far, so you might as well keep it as long as possible.

My Scott

My Single Speed

Always remember to pick your Uni according to the local trails or you'll be stuck with nowhere to ride for three years!

jonAiRMESH · May 2007

cheers. chopping up a frame? didnt see that one coming. those titec telescopic ones- they any good does anyone know?

ride like you nicked it

haroexone · May 2007

they are if you need them!

seat posts- long length, minimal insertion

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