UltraRear SLX 139gr.

Hi performance with the easiness of regular elbow spokes.

Weight: 139gr.

Drillings: 20h,24h,28h,32h.

Material: special AL7075TX & GRD5 Titanium.

External Bearings: 6803-SRS/6803-2RS ABEC5 cartridges.

Internal Bearings: 6903-SRS ABEC5 main axle & Ertalite® bushing.

Compatibity: Shimano/Sram, Campagnolo, 10&11 speed compatible.

Axle construction: multishaped 17mm milled to micro tolerances.

Body construction: 3D multiaxial machining all in 1 stage.

Finishing: black anodized body, "hart-coated" axle-ends.

Micro-tuner: quickest bearing preload system.

Freewheel: Hyper engineered 2pawls OR-Drive.

Graphics: laser etched.

Optional: ZeroUp-R hibrid-ceramic bearings.

Micro-tuner: our easy and quick external bearing preload system that ensures precise tuning, smooth running and no play at the rim.

Equipped with ABEC5 cartridge bearings featuring Grade 5 Cromium Steel Balls, 52100 Hi-Carbon Cromium Alloy Races, Nylon-Graphite Ball Retainers, Removable Snap Ring Seals. Fully serviceable.

Special low friction SRS axial seals on main hub bearings, 2RS protective seals on freewheel bearing.

Titanium ratchet wheel with a precise 30T pawl engaging system.

Camber details

To further optimize wheel stiffness we provide specific Campagnolo and Shimano/Sram axle-ends that are optimized around the cassette dimensions of each manufacturer standard.

The black finished "Extreme Camber" axle-ends allow Shimano/Sram setups to gain 1.5mm more camber on the drive side. This makes UltraRear SX equipped wheels at least 5% laterally stiffer than any other hub on the market.

Hi-performing custom wheels have never been that easy to build.

Here you find pre-calculated spoke lenghts, spoke patterns and wheel building tips.

As every Extralite products UltraHubs exceede UNI/DIN Safety standards. Safety tests simulate a very strong 90kg (200lb) rider output.

100% made in Italy