Rotor Cranks USA, Q-Rings, Rotor System





S1 Stem

Road 31.8 OS
BLK/BLK or BLK/RED
90-130mm, 99g (90mm)
$174.00 shipped

Tested in the 2007 Tour de France by Team Astana, the key to the S1 Stem is the exclusive use of Rotor’s patented DTT design (Double Thread Technology); a double threaded design which eliminates the need for a head on the bolts. Each end of the bolt has a different thread pitch allowing for numerous technological advances not found on any other stem. 7.5 degree +/- rise/drop. 34mm stack height. Click here for product details and information regarding availability of other sizes.

Free UPS ground shipping to any continental U.S. address ($8.00 value).


All items are in stock unless otherwise noted.
Select your Rotor S1 Stem, and add to cart:







SX Stem (4-Bolt)

Road 31.8 OS
BLK/BLK or BLK/RED
100-110mm, 111g (100mm)
$199.00 shipped

7075 CNC machined aluminum, +/- 2.5 degree rise, 31.8 OS, 34mm stack height, with Rotor’s patented DTT design (Double Thread Technology); a double threaded design which eliminates the need for a head on the bolts. Each end of the bolt has a different thread pitch allowing for numerous technological advances not found on any other stem. Click here for product details and information regarding availability of other sizes.

Free UPS ground shipping to any continental U.S. address ($8.00 value).


All items are in stock unless otherwise noted.
Select your Rotor SX Stem, and add to cart:









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