ZippSL Speed Carbon Seatpost
Item # ZIP005O
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Finicky single-bolt seat clamp
- Familiarity: I've used it several times
This is a nice looking, lightweight seatpost...but the single-bolt clamp for the saddle rails gave me some problems initially. It relies on the tension of the single bolt to create enough frictional force between the round clamp pieces to resist rotation under your weight, in addition to securing the rails fore/aft. Initially, on the first few rides, the tilt angle kept changing due to slippage. I finally got it to stay put by torquing it extra tightly, and then re-torquing after each ride. The opposing clamp pieces have to move both in (to secure angle) and down (to secure the rails), so to simplify the discussion I think it needed to work itself into place in order to cinch correctly. So far it has stayed put the last few rides, fortunately. So for looks and weight it's 5 stars, but overall the single-bolt clamp design is just not as stable as their 2-bolt Service Course clamp design.
A little faith..
- Familiarity: I've used it once or twice and have initial impressions
I like to read reviews on online products but it`s good to keep them in perspective, and after reading the 1 star review I almost did not buy one of these beautiful seat posts which in my case matches my SL Speed stem so here is my 2 bits. I took it out of the packaging it looked super cool and exactly what I wanted, then I put the post on the frame and now I`m getting excited, I studied the seat binder parts trying to predict where this is going to go bad and finally said heck with it and installed the seat on the post (7X9 carbon rails)... finished..
The end result?.. Gorgeous, very lite, very trick, EZ to install, I rode 25 miles yesterday and when I got home I stared at it for a minute and felt pretty great about the whole thing..
Surpasses ENVE post for Worst Post Ever
- Familiarity: I returned this product before using it
The design of the new saddle rail retention system is so bad that it flies right past aggravating and straight toward rage inducing. Regardless of the amount of grease used on the metal contact points (which, by the way, is woefully inadequate as it comes shipped) the design is such that the metal pieces attempt to gall together resulting in a completely useless, non adjustable, and ineffective product. Having spent several years in bike shops, and many more around them and around bikes I though that the original ENVE ver. 1 was the worst post of all the time, I have been proven wrong. I hope for Zipp's sake that this was a quality control issue in their Taiwanese facility and not their idea of a professional product worth the asking price of $265. Awful.
Does the clamp accommodate 7x9 carbon rails?
yes, I've used it with fizik oversized carbon railed saddles.
Zipp, undeniably, one of the very best carbon road wheelset makers in the world... has quietly become one of the very best makers of carbon cockpit components.
The Zipp SL Speed carbon seatpost does not disappoint. It is expensive. It is gorgeous. It is fantastic. You get what you pay for.
Super light, super strong, lessens low vibration chatter... and dead sexy in matte carbon black. American company/design. Cool.
Install note: If you own a carbon bike frame... and you probably do if you're looking at this seatpost... then you must use grip paste to set your seatpost. I highly recommend "Finish Line" grip paste ($7/tube) -better than Park's.
Tighten this carbon post to spec using a quality torque wrench or one of Park's cool new torque keys ($45). Don't over tighten! And you don't need to if you use grip paste and a torque wrench/key.