Sturdy, precise and incredibly light.
Weight: 148g.(28h-XD-HDC)
Material: special 7075TXX
Available Drillings: 24h, 28h
Spokes: up to Ø2.6mm, Steel, Berd, Carbon
Frame standard: 148mm thru-axle "Rear Boost"
Cassette standards: Sram XD-Drive, Shima M11s or Shima M12s
Freehub system: 3rd generation of Extralite's hyper engineered front engagement
Freehub seals & bearings: durable polyurethane Lip seal, 2x 6803-2RS sealed cartridges
Hubshell seals & bearings: external Soft-Touch O-r seal, 2RS sealed cartridges 6903+6803 (*option 2x6903-2RS)
Axle construction: 17mm, multi-shaped and individually lapped to micro tolerances
Bearing options: ABI Enduro 440-stainless, HDC Ceramic, XD15 Ceramic
Micro-Tuner: super accurate external bearing preload system
Finishing: black anodized body, "hart-coat" freehub and axle-ends
Graphics: laser etched
*Option: 6903-2RS bearing (17-30-7mm) on disc side for heavy duty use.
Bearing
Options |
Pre-calculated spoke lengths, spoke patterns and wheel building tips. |
Freewheel
Options
|
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Combine HyperBoost3-R with Black-lock and get a super-stiff tricky assembly.
The
overall hub system is the world lightest and employs bigger bearings than most
competitors.
Freehub employs 2 corrosion resistant stainless bearings (6803-2rs), hubshell
rotates on a"heavy duty"
(6903-2rs) corrosion resistant stainless main bearing that can handle 250kg
and a low friction (6803-2rs) bearing on disc side.
The
"heavy
duty" 6903-2RS at disc side is also available
as option.
Bigger
bearings are mounted onto a bigger 17mm diameter axle, multi-shaped
and individually lapped
to micro tolerances.
This creates a stiffer assembly that significantly increases bearing durability
and hub stiffness.
Micro-tuner
ensures
a
very precise
bearing setting: minimum bearing friction with highest bearing durability and
no play at the rim.
Additional external Soft-Touch O-ring seals keep dust and moisture away from the 2RS bearing seals promoting bearing longevity.
Third
generation of Extralite's front engagement system increases the gap with the
competition.
20%
lighter floating-ring enhances engagement quickness and also reduces noise and
drag.
Newly
developed hubshell splines
increase overall lifespan over 35% and simplifies maintenance.
Specifically
designed long-life polyurethane Lip seal protects the freewheel mechanism from
the elements..
Straight
pull spokes increase wheel stiffness, reduce lateral flex and increase reactivity
under torque transmission.
All this offers a sensible weight reduction and is well compatible with Berd spokes too!
100% made in Italy