Searching...
sign in
ThomsonMasterpiece Straight Seatpost
5.0
$14990
27.2 x 330 [Black]
Amazon
$14990
27.2 x 330 [Black]
$14995
30.9 x 350 [Black]
$15511
27.2 x 240 [Black]
$16103
31.6 x 350 [Black]
$16906
27.2 x 330 [Silver]
$19905
31.6 x 350 [Silver]
$22300
30.9 x 350 [Silver]
request one we've missed
choose a size and color above to show stock
FREE SHIP
Leaves Next Mon.
Leaves Next Mon.
The Masterpiece seatpost is machined from a solid block of aluminum, so aside for looking gorgeous, the strength-to-weight ratio is unmatched by any other seatpost on the market. The clamp, head and upper tube are a singular unit, not pieces bonded or pressed in; this upper post can withstand 325 pounds of torque. The long seat rail adds to the upper strength, with 1.614 inches of grip length keeping firm hold on the saddle. The Masterpiece maintains such strength in concert with light weight: Masterpiece seat posts weigh 40 grams less than an Elite post of the same size, which is achieved by all-over machining and the oval design of the inner post diameter. This is Thomson's ultimate seat post.
Sizing note: The 27.2mm diameter post is available in 240mm and 330mm length options. The 30.9mm and 31.6mm diameter posts are only available in a 350mm length.
Sizing note: The 27.2mm diameter post is available in 240mm and 330mm length options. The 30.9mm and 31.6mm diameter posts are only available in a 350mm length.
- All surfaces machined to remove weight
- Accommodates seat tube angles of 62 degrees or more
- 41mm seat rail grip length
Specifications
Color
Black, Silver
Diameter - Seatpost
27.2mm, 30.9mm, 31.6mm
Length - Seatposts
240mm, 330mm, 350mm
Material
Aluminum
Offset
0mm
Rail Style
Standard Rails
Weight
193
Black - 27.2 x 330 UPC
875850001060
Black - 27.2 x 330 MPN
SP-M105BLACK
Black - 30.9 x 350 UPC
875850002616
Black - 30.9 x 350 MPN
SP-M106BLACK
Black - 31.6 x 350 UPC
875850002654
Black - 31.6 x 350 MPN
SP-M107BLACK
Silver - 30.9 x 350 UPC
875850002630
Silver - 30.9 x 350 MPN
SP-M106SILVER
Tree Fort ID:
333222383059
Review Summary
LIKES
Strong (1),
Strength (1),
Looks Good (1),
Light (2),
Made in the USA (1),
Finish (1)
WORKS FOR
Cross Country (1),
Commuting (1),
All Mountain (1),
Touring (1),
Road (1)
DISLIKES
none
5.0 GEARS
4 reviews
4 reviews
Customer Reviews
5
June 04, 2013
reviewed by: bulldog1935
I have long limbs and a relatively short torso. I had a nicely dialed-in upright, and set out to duplicate the reach on the top-hood position on a road bike I was building. The machining on this post is exceptional, and it is incredibly light. At this price, it would not walk away.
vote
vote5
July 05, 2013
reviewed by: h2ovwdrvr
I was back and forth between a cobalt 11, an Easton EC90, and this seatpost. Tree Fort had a good deal on a Masterpiece, so it helped make my decision easier. Having Easton posts on the other bikes in the household, I was surprised by how much nicer the quality was on this Thomson -- the machining is amazing. I didn't believe a weight could be lighter than a carbon post but the Thomson is. With Titanium bolts replacing the stock bolts, it came in at 177 grams for a 31.6x350. On my fiance's bike, the 27.2x 300 Easton Haven carbon weighs 217 grams for comparision.
5
August 08, 2021
reviewed by: man...@ya...o.com
I had a Crank Bros Carbon seatpost for 11 yrs, clamp not so good, Thompson Clamp is GREAT, as light weight as the Crank Bros post, I don't notice the Aluminum post being stiffer or anything else, Thompson post is GREAT..
5
August 16, 2021
reviewed by: man...@ya...o.com
I had a Crank Bros Carbon seatpost for over 10 yrs, the clamps didn't work with 7x9 carbon saddle, the seat clamp on Thompson is awesome, the post is a beauty, its not any stiffer then the Crank Bros, Carbon, I put on a $40 carbon saddle, that was mean after 20 miles, I got a Fizik Antares now I'm smiling, great seat post. light, great looking, no stiffer then the 10 yr old carbon CB's seatpost
Sales and Deals 
Chat Now