's Forum Archives - Components

Archive Home >> Components(1 2 3 4 5 6 7 8 9 10 )

thomson seatpost(3 posts)

thomson seatpostguy
Aug 5, 2001 11:10 PM
I'm looking around for a seatpost, and considering the thomson. which one of them offers the best neutral saddle position? knee above pedal spindle, with a few cm free to either side...

also, will a post like the syncros carbon (go canada!) offer a plusher ride? the clamp looks about the same, and if the two posts perform fine, i would prefer the one that absorbs shock the best
re: thomson seatpostMike Prince
Aug 6, 2001 12:35 AM
Neutral saddle position, KOPS, etc. depends largely on the geometry of your frame although the seatpost design does have some influence.

I can't speak for the layback Thomson model as I have the straight model. Provides plenty of adjustment for me and my frame (72 degree ST angle). Best seatpost I have ever used. I would think that a carbon post would absorb shock better though as the Thomson is quite stiff. I notice this especially on my Cannondale, less so on my Steelman.

get the setback model...C-40
Aug 6, 2001 9:31 AM
Only the Thomson with setback is generally appropriate for road bikes. Even the setback model has less setback than traditional posts, that are designed with the front of the seat rail clamp near the centerline of the post.

The Thomson straight up model moves the nominal saddle position forward about 2cm, which has the same effect as increasing the seat tube angle by more 1.5 degrees, or more. The setback model has 1.5cm more setback than the straight model. Better, but still less than traditional posts.

A carbon post will be lighter, but it won't improve the ride.