Hub XXX one from Gravity-Zero.Com.AU

SteveintheUK in Campagnolo, Ceramic Bearings, Gravity-Zero.Com.AU, Hubs, Manufacturers, Products, Shimano

The “XXX one” Hub Mechanism (Information to be updated)

The “XXX one” Hub Mechanism (The gravity-zero freewheel hub system is covered by pending Australian and international patent applications.) but is dure to have ceramic bearings and a carbon hub.

The “X one” Series 5 Hub Mechanism

The “X one” Series 5 Hub Mechanism (The gravity-zero freewheel hub system is covered by pending Australian and international patent applications.) is fitted to all wheels sets from December 2007 onwards. The Series 5 with increased cam angles and spring tensions lock up is more instant. It eliminates any form of backlash/lag at the hub or pedal: This equals zero lag. In simple terms it is like riding a fixed wheel bike with gears. The “X one” creates a pedalling motion like no other freewheel hub, it propells the riders legs through the position of least mechanical advantage at the top and bottom of each pedal stroke. This moment is sometimes refered to as TDC and BDC, the Top Dead Centre and the Bottom Dead Centre.

Technical Details for the X-One hub are:

“X one” rear hub spec

Rear hub: machined 7075 T651 alloy (Anodised)
Axle and spacer: machined 7075 T651 alloy (Anodised)
Bearing: 4 precision high speed sealed bearing
Drive axle: en36a cast hardened steel
Cassette body: 7075 T651 alloy (Anodised)
Axle size: 12 mm diameter, fully floating.
Spoke hole size: drilled to 2.3 mm
Spoke hole options: 24, 28
Cluster configuration: Shimano and Campagnolo
Weight: 292 g

“X one” front hub spec

Front hub: machined 7075 T651 alloy (Anodised)
Axle and spacer: machined 7075 T651 alloy (Anodised)
Axle size: 12 mm diameter, fully floating
Bearing: 2 precision high speed sealed bearing
Spoke hole size: drilled to 2.3 mm
Spoke hole options: 20, 24
Weight : 94 g

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