Designed with our Retül fit specialists, doctors, and engineers, the Sitero is the best-fitting saddle for aerodynamic time trial positions. A wide channel, progressive shape, level 2 padding and multiple width options provide optimal comfort and support for long distance rides in an aerodynamic position. And to further ensure that this is the best Triathlon/Time Trial saddle on the market, it features hollow Chromoly rails and SWAT™ mounts that allow for aerodynamic storage of your ride essentials.
Next-level comfort for riders of all sizes while in the aero position.
Lightweight and supportive PU padding for comfort and support on longer rides.
4-way stretch cover material for unparalleled Pelvic rami comfort.
Level 2 padding: Medium density foam for bike feel with additional cushioning.
Durable hollow Cr-Mo rails.
SWAT™-compatible mounts molded into the saddle base allow for sleek and integrated storage solutions.
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Everything was great. Was waiting for the SL9 to release since the first leak. Going from a SL7 was night and day.
Also Sierra Bicycle Supply, was amazing. Will be shopping here plenty more. The service they displayed was top tier, from the order placing online all the way to the delivery.
After many years I wore out my derailleur gears. Since I ride on my wind trainer daily, I needed to get up and riding again. Riding us part of my cancer therapy. Replacing the gears was a quick and easy way to fix the problem. Cost was fine and the delivery was fast. Thank you.
Got this for my kids bike. He does XC racing. Has been riding in dry lose dirt, wet conditions. Lots of climbing and some downhill. He loves them. Shipped fast and in sexure packaging. I would definitely buy again.
Heard a lot of good things about this tires put them on my commuter. The roll much faster than the schwable energizers on it. Puncture protection only time will tell.
Everything was great. Was waiting for the SL9 to release since the first leak. Going from a SL7 was night and day.
Also Sierra Bicycle Supply, was amazing. Will be shopping here plenty more. The service they displayed was top tier, from the order placing online all the way to the delivery.
S-Works Tarmac SL9 Frameset - FACT 12r Carbon
Dante MVG
2024 Sworks Tarmac SL8 Frame
Specialized SWorks SL8 light and fast. Sierra Bike Supply was helpful and responsive. Recommended online store.
S-Works Tarmac SL8 Frameset
Casey Sparks
Literally EPIC
Fast shipping and perfect frame set as described. It's literally the lightest built MTB I've ever felt. My wife will be smashing on it at this year at the Leadville 100. LFG Thanks guys!
S-Works Epic World Cup Frameset
Andrew Thomson
Exceptional Wheels
The CLX III are exceptional I was a little apprehensive about buying them having ridden the Enve 4.5 but you feel less crosswinds and their lighter and spin fast. The spokes seemed to offer a lot of dampening vibration. Win win in my book.
