Jet RC9.D Black Rim Brake Wheelset
In stock in the UK based HED Wheels warehouse
The Jet RC9.D Black is the fastest rim brake wheelset from HED when attempting the quickest possible ride during time trials.
The front wheel has a 90mm deep rim that is aerodynamically tuned via HED's oft-copied, patented profile to realise an optimum balance of drag reduction and stability. The front wheel is partnered by the "skeletal" rear disc wheel that incorporates carbon sides expertly bonded to a standard spoked wheel. This manufacturing method keeps the weight low and the vertical compliance high, resulting in a reactive, comfortable and more powerful ride, especially when the road surface is rough. The carbon sides of the disc wheel exhibit a waved profile to help regulate the dirty airflow at the bike's rear, further decreasing aerodynamic drag.
Both wheels have a hybrid construction, blending carbon and aluminium. While the carbon portions take care of the aerodynamics, the aluminium outer sections provide structure and strength, and include the all-black "Turbine" rim brake surface. This textured brake surface reduces stopping distances by 70% in the wet and 25% in the dry for a safer, more controlled ride, whatever the weather conditions. The aluminium sections of the rim also sport a broad, 21mm internal tyre junction, helping tubeless-ready or standard clincher tyres realise lower rolling resistance and increased cornering traction at comfort-inducing lower inflation pressures.
Sonic Pro hubs house the smoothest bearings that seemingly spin forever, and the 545 rear freehub guarantees rapid engagment when accelerating away from roundabouts and corners. The front wheel has 18 Sapim CX-Ray spokes, with their bladed profiles contributing to lower drag, especially at higher speeds.
HED's fastest rim brake wheelset for rapid time trials
Handbuilt in HED’s own Minnesota, USA based facility
The front wheel has a carbon/alloy hybrid rim construction for aerodynamics, control and safety
HED patented 90mm deep front rim profile
The rear disc wheel has a carbon/alloy “skeletal” construction for lower weight, increased compliance
The waved side profile of the disc wheel markedly reduces drag at all yaw angles
All-black Turbine rim braking surface is anodised and machined for shorter stopping distances
21mm wide internal rim measurement
Tubeless-ready or standard tube-type tyre compatible
HED Sonic Pro hubs
Five-pawl, 45 ratchet freehub body
The front wheel has 18 Sapim CX-Ray spokes
Radial front wheel spoke lacing patterns
Rim Material: HED carbon x alloy
Rim Type: Hooked
Tyre Compatibility: Tubeless-ready clincher or standard tube-type clincher
Rim Size: 700c
Rim Depth: Front: 90mm / Rear: Full disc
External Rim Width: Front: 32mm / Rear: 28mm
Internal Rim Width: 21mm
Effective Rim Diameter (ERD): Front: 593mm / Rear: 593mm
Rim Weight: Front: 615g / Rear: N/A
Rim Decals: Removable stickers
Braking Surface: Turbine; black anodised and textured
Recommended Brake Pad: Standard alloy
Hub Model: Front: HED Sonic Pro 515 / Rear: HED Sonic Pro 545
Hub Bearing Type: Front: 6902 2RS Radial / Rear: 6902 2RS Radial
Freehub Options: Shimano HD 9, 10, 11 & 12-speed, SRAM XDR 12-speed, Campagnolo
Front Axle: 5mm quick release
Rear Axle: 5mm quick release
Build and Spokes: x 18 front in a radial pattern / rear: NA
Spoke Type: Front: Sapim CX-Ray Bladed, straight pull
Spoke Lengths: Front: 286mm
Assembly Method: Hand-built in Minnesota, USA
Wheelset Weight: 2130g (Front: 830g / Rear: 1300g)
Aerodynamically Optimal Tyre Size: Front: 25mm, Rear: 25mm
Max Tyre Pressure: 23mm tyre: 80psi / 25mm tyre: 75psi / 28mm tyre: 70psi / 32mm tyre: 70psi
Includes: Alloy QR skewers, valve extenders and tool, tubeless-ready rim tape, disc wheel valve hole covers, HED wheel manual
Crash Replacement Policy: Yes, read more: HED Crash Replacement
Warranty: 5-years. Read more: HED wheels warranty
The anodised surface on Black wheels is a formulation that is harder than the cosmetic coating on many anodised aluminium rims.
With some forethought and minimal maintenance on the rider’s part it will last a long time so please take note of the following points:
1) Use of clean rubber brake pads will result in the longest life of the black surface.
2) Embedded rocks and road grit will wear the anodising much faster than rubber brake compound. Be advised that wet and/or dirty road surfaces will contaminate brake pads. The road grit in badly contaminated pads will wear the black surface.
3) If your rides are regularly on wet and/or dirty roads the hard anodised surface on the Black rims will have a shorter life than it would in dry conditions.