The ENVE SES Aero Road Stem is designed to make you faster through aero shaping and optimisation of bike position to give a speed boost up to 30W.
This stem has been designed for road racers, triathletes, and performance-focused riders looking to improve overall aerodynamics while maintaining the stiffness, comfort and class-leading ride feel needed for prolonged day-in, day-out speed.
Developed with input from Team Dimension Data, ENVE's ultra-adjustable design uses two steerer clamp shims to tune the bar height by switching the angle between -7 and -17° with a fixed length or to tune the length by +/-2.5mm with a fixed -12.5° angle. This enables fine-tuning of your bike fit, allowing you to comfortably adopt a more aerodynamic position while also reducing the need for headset spacers to create cleaner airflow.
The SES Aero Road Stem features an aerodynamic shape, low-profile clamp and the option to set it flat for minimal frontal area. Meanwhile, the regular 31.8mm clamp means it's compatible with virtually every handlebar on the market.
The aerodynamic design of the stem's shape was carried out in CFD (computational fluid dynamics) software by Smart Aero Technology and then honed at the Mercedes-AMG Petronas F1 wind tunnel.
The testing results revealed a valuable 0.6W average gains across a full sweep of wind angles at 40kph compared to the ENVE Road Stem. Adding the stem to its natural partner, the ENVE SES Aero Road Handlebar, saves another 5W.
As riders make up 80 to 90% of total drag, the biggest savings come back to the fit. With rider positions optimised using the shims commonly seeing gains of 15-30W. To avoid ruining the aerodynamic profile through bike computer positioning, ENVE has created a Garmin/Wahoo mount specific to this stem (sold separately).
The stem is beautifully constructed in uni-directional carbon fibre, giving incredible strength, an ultra-sleek shape, additional comfort and weight savings. The aluminium clamp gives a strong, reliable grip while the stem also comes with a matching top cap.
- Uni-directional carbon construction
- Tested and raced by Team Dimension Data
- Wind-tunnel tested aerodynamic profile
- Length-offset shim for +/-2.5mm
- Angle-offset shim for -17° or -7° drop
- Compatible with ENVE Aero Road Stem Computer Mount
This stem is intended for negative drop only and cannot be used flipped or reversed to create a positive rise.
ENVE Aero Road Stem Specification
|Length||100, 110, 120, 130, 140mm (+/- 2.5mm with 12 degree shim)|
|Weight||170, 175, 180, 185, 190 grams|
|Rise||-12 Degrees Fixed -17 to -7 degrees with shim|
|Handle Bar Clamp Diameter||31.8mm|
|Steerer Tube Clamp Diameter||1 1/8" (1.125)|
|Stack Height||42.5mm with length shim / 45.5mm with angle shim|
|Torque Spec: Face Plate||Upper Bolt 10Nm, Lower Bolt 6Nm|
|Torque Spec: Steerer Tube||5.5NM|
Known for the fastest, strongest and lightest handmade-in-the-USA carbon wheels, ENVE has had a spectacular rise to the top of the cycling world. Truly made for riders by riders, ENVE's product range of full carbon wheels, carbon stems, bars, seatposts and forks is the result of the team's desire to make the sport we love even more enjoyable. Meanwhile strong ties to the top levels of road cycling, mountain biking and triathlon mean pro feedback has helped hone ENVE's products into the ultimate performance upgrades. Read more about ENVE.
Founded by real cycling enthusiasts in 2004, our passion for elite performance runs through everything we do at Saddleback. Our team of dedicated roadies, mountain bikers and triathletes practice what we preach to bring you the finest cycling products and a superior service to match. We're the official UK home of Castelli, Chris King, ENVE, HJC, Moots Cycles, PUSH, Sidi, Silca, Sportful, Stages, Troy Lee Designs and Wolf Tooth.