Ok to rotate double rail saddle seatpost clamp 180 degrees for offset?
09-04-23, 03:53 AM
#1
Newbie
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Ok to rotate double rail saddle seatpost clamp 180 degrees for offset?
So on these old-style double-rail saddles, is it OK to flip the seatpost clamp 180 degrees so that it's toward the front of the saddle, effectively creating an offset seatpost so the saddle can be positioned further from the handlebars?
09-04-23, 04:25 AM
#2
Junior Member
In my own experience it has not held up, the clamp is not design for the extra leverage caused by the offset.
I'm not an extreme rider, less than 200 lbs and not more than 4k miles per year.
SR-mte 100 has been a viable solution so far for me. But is no longer available new ,so either no demand or too many failures.
I'm not an extreme rider, less than 200 lbs and not more than 4k miles per year.
SR-mte 100 has been a viable solution so far for me. But is no longer available new ,so either no demand or too many failures.
09-04-23, 05:58 AM
#3
Newbie
Thread Starter
That post looks like it's just for single rail saddles. From what I've been told, I'm only supposed to use these pilar-style seat posts with a double rail saddle:
https://www.smittyzcyclez.com/alloy-...-no-clamp.html
https://www.smittyzcyclez.com/alloy-...-no-clamp.html
09-04-23, 07:52 AM
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The clamp is generally reversed from the image's. When using a traditional single rail post and only clamping on one of the two side rails of these saddles can result in that rail breaking. Back in the 1980s there was a commercially available adapter block and longer bolt kit. The block had two sets of grooves that engage the rails and site between the two side rails. The rest of the post's clamp sandwiches the rail/block assembly and the longer bolt replaces the OEM one. here's a bad photo of it. Andy
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09-04-23, 10:32 AM
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That post looks like it's just for single rail saddles. From what I've been told, I'm only supposed to use these pilar-style seat posts with a double rail saddle:
https://www.smittyzcyclez.com/alloy-...-no-clamp.html
https://www.smittyzcyclez.com/alloy-...-no-clamp.html
In answer to your question: Yes, flip the clamp.
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09-04-23, 11:17 AM
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The clamp is generally reversed from the image's. When using a traditional single rail post and only clamping on one of the two side rails of these saddles can result in that rail breaking. Back in the 1980s there was a commercially available adapter block and longer bolt kit. The block had two sets of grooves that engage the rails and site between the two side rails. The rest of the post's clamp sandwiches the rail/block assembly and the longer bolt replaces the OEM one. here's a bad photo of it. Andy
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09-04-23, 01:32 PM
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i first flipped one of those seat clamps back in the 1960's... i then rode that Lygie Road bike for thousands of miles until it was stolen.
no problems have been noted when those multi-part clamps get flipped.
tip: slip the two inner rail plates in place, then slip the post clamp in between them.
no problems have been noted when those multi-part clamps get flipped.
tip: slip the two inner rail plates in place, then slip the post clamp in between them.
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09-04-23, 06:26 PM
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Yes, it's designed to work either way.
In fact, IF I recall correctly, the post is normally forward of the clamp bolt, which is what you seem to want.
The critical issue is where your center of ass (so to speak) is. Ideally, you want to be centered close to the bolt. Otherwise, there's a torque that may exceed the knurl's holding power and cause slippage.
In fact, IF I recall correctly, the post is normally forward of the clamp bolt, which is what you seem to want.
The critical issue is where your center of ass (so to speak) is. Ideally, you want to be centered close to the bolt. Otherwise, there's a torque that may exceed the knurl's holding power and cause slippage.
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