News | Duke Releases New Rims and Hubs

French wheel builder JP Racingbike 1 announces the release of updated carbon rims and hubs from manufacturer, Duke Racing Wheels. They feature an asymmetrical rim with a weight of 425g front and 450g rear. The colourful Mad Max hubs look pretty rad but they are also available with a range of popular hubs. The 32mm internal width enduro wheelset has us particularly interested!

Carbon 650b / 29’’ LUCKY JACK Rim

Designed for XC use, the Lucky Jack is totally new for 2015. It has increased asymmetry to keep spoke tension equal on both sides. Specially designed for tubeless use, the rim features an anti-burp system and increased internal width.

• 3K carbon rim designed and tested in France, the rim is available in 650b and 29’’, tubeless
  compatible. Respectively 310 and 330g.
• The asymmetry is now 2,6mm to give a much better brass angle than classic rims and equalize the
  spokes tension, so that stiffness and durability are improved.
• Important internal wideness (24,8mm): tire’s volume and stability are increased. Grip, efficiency
  and comfort are much improved.
• Hookless design: the rim’s resistance is better than a rim with hooks. We have used that technology since
  2011.
• External nipples for easier manipulation.
• These modifications, added to new fiber and resin, allow 40% more lateral stiffness and 50% more
  impact resistance than the previous version.
• Anti-burp system: tire’s bead is held in position whatever the air pressure, no risk of blowing off.
• Wheelset absolute personalization: hubs, colors…
• Rim price: 429€
• Wheelset price with DUKE Mad Max hubs and Sapim CX Ray spokes: 1637 €

MAD MAX MTB hubs

The redesigned Mad Max are a definite showpiece, available in many anodized colours. The front features a beautiful carbon and aluminum construction. They are built to last, designed and manufactured entirely in France and Germany.

• 100% French conception and fabrication (except bearings)
• 105g front and 220g rear.
• Alloy 7075T6 and carbon body for the front hub. Aeronautic quality, without use limit.
• Compatibility: QR5 or QR15 front, QR5 or 142×12 rear. Freewheel: Shimano 9-10-11s, SRAM 10 or
  SRAM XD 11s.
• Sealed stainless steel bearings made in Germany.
• 75 teeth freewheel, steel Driving System, 3 compression springs.
• Standard stainless steel bearings which are placed as much as possible on the hub’s sides to reduce
  stress on it and so increase fluidity and durability.
• Oriented flanges to reduce pressures on the spoke’s curve, they are placed away on disc side at
  front and cassette at rear to increase brass angle.
• Double wall end caps for a better impermeability.
• Colors: red, black, blue, green, orange.
• Available in 28 or 32 holes, 6 holes disc mount.
• Hubs prices: 198€ (front) – 408€ (rear)

Carbon 650b / 29’’ CRAZY JACK rim

Rémy Absalon’s wheel of choice, the Crazy Jack has been redesigned for 2015. It was widened to 32mm internal width and the spoke mounting offset was increased to 3 mm. 100g heavier than the Lucky Jack keeps it competitive among Enduro rims while being built for durability. We just may find out in an upcoming test!

• 3K carbon rim designed and tested in France, the rim is available in 650b and 29’’, tubeless
  compatible. Respectively 425 and 450g.
• The asymetry is now 3mm to give a much better brass angle than classic rims and equalize the
  spokes tension, so that stiffness and durability are improved.
• Important internal wideness (32mm): tire’s volume and stability are increased. Grip, efficiency and
  comfort are much improved.
• Hookless design: the rim’s resistance is better than a rim with hooks. We use that technology since
  2011.
• External nipples for easier manipulation.
• These modifications, added to new fiber and resin, allow 40% more lateral stiffness and 50% more
  impact resistance than the previous version.
• Anti-burp system: tire’s bead is held in position whatever the air pressure, no risk of blowing off.
• Wheelset absolute personalization: hubs, colors…
• Rim price: 437€ (650b) – 449€ (29’’)
• Wheelset price with DUKE Mad Max hubs and Sapim CX Ray spokes:
  1657€ (650b) – 1690€ (29’’)

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