HDC ceramic bearings: good mileage, low rolling resistance, medium resistance in humid environment, best choice for best racing performance
Please specify in the order commentaries:
1.number of holes
20, 24 or 28
Shimano 11s or Campagnolo 11/12s or Sram XDR 12v
CyberRear SP 129g.
More miles, less weight.
Weight: 129g (20h).
Drilling: 20, 24, 28h.
Standard 9mm axle
Material: special AL7075TX & Grade5 Titanium.
Bearings: ABEC5 cartridges 1x6903-2RS 3x6803-2RS.
Compatibility: Shimano-Sram 8/9/10/11S, Campagnolo 9/10/11s.
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: the quickest bearing preload system.
Freewheel: Hyper engineered 2pawls OR-Drive.
Graphics: laser etched.
HDC ceramic bearings
Dimensions for wheel building
Spoke hole Ø: 2.6mm
Left flange drilling Ø: 29.5mm
Center to left flange: 42mm
Center to right flange: 19mm
Right flange drilling Ø: 52mm
New 4-bearing design for long lasting preformance.
New oversized titanium ratchet wheel with a precise 32T pawl engaging system.
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 Chromium Steel Balls, 52100 Hi-Carbon Chromium Alloy Races, Nylon-Graphite Ball Retainers. Fully serviceable.
Very light: a weight nearly as low as hybrid ceramic versions.
Special low friction SRS axial seals on main hub bearings, 2RS protective seals on freewheel bearings.
Hi-tech rarely combines with maintenance easiness, not here!
As with all Extralite products CyberHubs exceed UNI/DIN Safety standards.