EXTRALITE 5 Speed Rear Hub CyberRear SL-2B for Brompton Bicycle
EXTRALITE Brompton Rear Hub CyberRear SL-2B
Brompton specific rear hub, optimal spoke camber, classic J-bend spokes, 2.8mm holes. 20-24-28H
Compatible with A-C and P-T Line
112mm wide, oversized axle Ø17mm, ABEC5 cartridge bearings (high load capacity) with external hexagonal preload tuner.
Hub is supplied with special Titanium bolts for extreme light wheel securing (B-Lock system).
Titanium 32T ratched wheel, OR-spring oversized and sealed freewheel body.
Black anodized hub-body with laser etched graphics.
Bearing options: Abec5 Steel, 440C Stainless Steel, HDC Hybrid Ceramic, XD-15 Ceramic.
Weight: 128g (B-Lock special securing system 7.8g - Tensioner bolt 3.8g)
Drilling: 20, 24, 28h
Spoke holes: 2.8mm rounded
Material: special AL7075TX & Grade5 Titanium
Bearings: ABEC5 cartridges 1x6903-2RS 3x6803-2RS
Special QR: Titanium Bolts for extreme light securing system 7.8g
Tensioner Bolt: Special bolt for A-C Line tensioner, only 3.8g
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
Ratchet: 32T Titanium engaging system
Graphics: laser etched.
Hi-tech rarely combines with such easy tuning and maintenance easiness
Micro-tuner: our easy and quick external bearing preload system that ensures precise bearing tuning, smooth running and no play at the rim
Equipped with 4 high quality Abec5, stainless or Hybrid-Ceramic bearings
Bearing dimensions are one step beefier than most and much heavier competitors
The smart securing system does not require Quick Release, for a further weight saving.
Stilish Tensioner bolt for the A and C Line gives a light and nice touch
The first Brompton hub compatible with all setups: A,C,P and T-Line
Titanium Bolts heads gives a clean look without hurting you when bike is folded and carried