Does the standard American Classic "2 piece" seatpost have equal, more, or less setback than a Thompson Elite setback post? Maxed out on a straight Elite post and need to get the saddle back another 2cm or so.
Parenthetically, I'm also kinda surprised by the price differential between these two...Thompson seems to go for at least double the Am Classic. Any real world difference between the two? I've got Elites on all my bikes and like 'em but I'd prefer to save a few bucks at the moment.
"David B." <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
Quick question for the r.b.t gurus...
Does the standard American Classic "2 piece" seatpost have equal, more, or less setback than a Thompson Elite setback post? Maxed out on a straight Elite post and need to get the saddle back another 2cm or so.
Parenthetically, I'm also kinda surprised by the price differential between these two...Thompson seems to go for at least double the Am Classic. Any real world difference between the two? I've got Elites on all my bikes and like 'em but I'd prefer to save a few bucks at the moment.
Does the standard American Classic "2 piece" seatpost have equal, more, or less setback than a Thompson Elite setback post? Maxed out on a straight Elite post and need to get the saddle back another 2cm or so.
The Thomson Elite setback version has 16mm of setback. Since it gets its setback by a bend in the upper portion, at least 10cm of post must be exposed (usually not a problem). Don't know about the AC.
The longer (41mm) clamp on the Thomson puts less bending stress on the saddle rails, which may be important with Ti or hollow rails. The shorter clamp on the AC allows more fore/aft adjustment.
Quoted message said:
Parenthetically, I'm also kinda surprised by the price differential between these two...Thompson seems to go for at least double the Am Classic. Any real world difference between the two? I've got Elites on all my bikes and like 'em but I'd prefer to save a few bucks at the moment.
The retail price of the Thomson Elite is about $80, and that's about what it goes for in most of the MO catalogs. But they're usually available for a lot less on eBay. I bought a brand new, never installed Elite with all the original packaging and documentation for $33.
"David B." <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
Quick question for the r.b.t gurus...
Does the standard American Classic "2 piece" seatpost have equal, more, or less setback than a Thompson Elite setback post? Maxed out on a straight Elite post and need to get the saddle back another 2cm or so.
Parenthetically, I'm also kinda surprised by the price differential between these two...Thompson seems to go for at least double the Am Classic. Any real world difference between the two? I've got Elites on all my bikes and like 'em but I'd prefer to save a few bucks at the moment.
The Thomson Elite setback version has 16mm of setback. Since it gets its setback by a bend in the upper portion, at least 10cm of post must be exposed (usually not a problem). Don't know about the AC.
One thing to check on the Thompson is that they don't adjust the shape of the seat mounts to take the stem bend into account. Bottom line, you can have alignment problems with a seat like Brooks B-17. If this looks like a problem with the seat you are going to use, check out Titec's offering, which isn't limited in that respect. -- PeteCresswell
One thing to check on the Thompson is that they don't adjust the
shape of the
Quoted message said:
seat mounts to take the stem bend into account. Bottom line, you can
have
Quoted message said:
alignment problems with a seat like Brooks B-17. If this looks
like a problem
Quoted message said:
with the seat you are going to use, check out Titec's offering, which
isn't
Quoted message said:
limited in that respect.
I think that was a problem with their original "0-degree" seat clamps where some saddles would be tilted upwards too much. Newer Thomsons use a 12-degree seat clamp which should not have that problem. If you have an older 0-degree clamp, it can be replaced with a 12-degree clamp. See their instruction sheet at:
But you're right that they don't compensate for the 10-degree bend on the setback models, which means the tilt range is different than for the non-setback models.