UltraHubs 62+157gr.
Swiss watch detailing.
Nothing is "mini", everything is oversized: axle, bearings, ratchet, flanges.
Weight: 62gr.
Material: special 7075TX.
Bearings: 2RS sealed cartdrige.
Micro-Tuner: quickest bearing preload system.
Finishing: "hart coat" sides, black anodized body.
Construction: 17mm oversized hi-engineered axle.
Graphics: laser etched.
Option: Hybrid ceramic bearings.
Dimensions for wheel building:
| Available drillings |
16
- 18 - 20 - 24
|
|
Center to flange |
int.
34mm, ext. 37mm
|
| Flange diameter (spoke drilling) |
43mm
(34mm)
|
|
Spoke hole diameter |
2,5mm
|
Radial lacing is allowed on internal flange side and only with D/B spokes (central section equivalent to Ø 1.5mm).
Micro-tuner allows an easy and quick bearing preload adjustment, no-tools required!
Flanges recive our new special treatments (military standard) to handle radial lacing stress.
To minimize torsional static forces flanges self-align under spoke lacing tension.
FEM: every single cubic mm recives hours of finite element analysis. UltraHubs axles and mechanism have been designed to handle any X-C racing abuse.
As every Extralite products UltraHubs exceede UNI/DIN Safety standards. Safety tests simulate a very strong 90kg (200lb) rider output.
The finest engineered hub worldwide.
Weight: 157gr.
Material: special 7075TX / GRD5 Titanium.
ExternalBearings: 2RS sealed cartdriges.
InternalBearings: mega 20-32 main axle / Ertalite®.
Construction: multishaped 20-17mm oversized axle.
Finishing: "hart coat" sides, black anodized body.
Micro-Tuner: quickest bearing preload system.
MegaDrive: Hyper engineered freewheel.
Graphics: laser etched.
Dimensions for wheel building:
| Available drillings |
20
- 24 - 28 - 32
|
| Spoke hole diameter |
2,4mm
|
| Flange diameter (spoke drilling) left side |
43mm
(34mm)
|
| Flange diameter (spoke drilling) chain side |
59mm
(50mm)
|
| Center to left flange (SR version) |
42mm
int, 45mm
ext
|
|
Center to right flange (SR version) |
17.5mm
int, 20.5mm ext
|
Radial lacing is allowed on left internal flange side and only with D/B spokes (central section equivalent to Ø 1.5mm ).
Micro-tuner: easy and quick external bearing preload system ensures smooth running and no play.
Hi-tech
oversized cassette handles over half-ton of chain pull.
Titanium ratchet wheel with 30 engaging positions.
FEM: every single cubic mm recives hours of finite element analysis. UltraHubs axles and mechanism have been designed to handle any X-C racing abuse.
As every Extralite products UltraHubs exceede UNI/DIN Safety standards. Safety tests simulate a very strong 90kg (200lb) rider output.
100% made in Italy