Does anyone know how much layback the Specialized Command Blacklite dropper post has?
Also, the Specialized website claims that it's available in a 31.6mm seat tube diameter, but I can't find one in this size online (only 30.9mm). Would the 30.9mm fit fine with a shim?
I'm looking to replace my RockShox Reverb with another dropper offering some layback due to the fairly steep seat tube angle of my frame.
Its either 20mm or 25mm, can't remember exactly.
Specialized built layback into the post because their full sus frame design (bottom bracket set back towards the chainstays) makes for a very steep seat angle without some layback.
Thanks devash. Yeah, sounds like Specialized is having the same 'issue' with their frames as my bike. I just had a look at the geometry of new Specialized Stumpjumper - it has a 74 degree seat tube angle, whereas my Cube Stereo 140 Super HPC TM 27.5 has a 74.5 degree seat tube angle, so ever so slightly steeper. I thought that a slightly longer stem may resolve this, but I think the key issue here is the horizontal distance between the seat clamp and the BB.
There was an interesting thread on the MTBR forums about Specialized frames and layback posts a few months ago.
If I run a straight post on my Camber then I end up constantly pushing myself backwards on the seat and pedaling feels wrong. Its the main reason why I wouldn't buy a Reverb.
By the way devash, do you happen to known the difference between the Blacklite and IRCC models? Is it worth paying the premium for the IRCC?
As far as I'm aware the "Blacklite" version just means the coating they put on the stanchion to make it smoother. All the new versions should have this. I don't think it makes that much difference though.
You probably know already but the original and Blacklite Command Post has three fixed points of adjustment, fully up, cruise, and fully down, so isn't infinitely adjustable like the Reverb or KS series.
The IRCC is an internal routing only version which adds an extra 10 points of adjustment mid-level so you can get the saddle exactly where you want it.
I'd get the IRCC if its not too much more and your frame will let you run an internally routed dropper.
Thanks devash - just ordered one!