Site Information

K2 Carbone XXLR50 25mm Fat Boy Clinchers 1540g/pr

Discontinued - replaced & updated by Dark Energy DMX550
Sold Out - updated for 2015 to Dark Energy DMX550

The all new Dark Energy DMX550 update is available now - click here

Beware speed cameras. The K2 Carbone XXLR50s deliver massive speed, precision handling and a great ride.

"Wheels always have a great influence on the character of any bike, and the Spin X-Series Fat Boys proved a fine match for the frame. They're astoundingly fast, spinning up to speed from stationary very rapidly and cruising along at high pace with ease, accompanied by a great soundtrack, a sort of low down echo that just sounds darn fast." David Arthur, Tech Ed

See what think of the X-Series wheels in their Sarto Seta complete superbike and standalone XLR38 reviews below. 

Precision steering comes courtesy of the high lateral stiffness we've engineered and built right in, without compromising ride comfort.

Supreme stability and speed, even in cross-wind conditions are down to the 25mm wide and 50mm deep 3DToroid Fat Boy Rim profiles. 

The superlight forged & machined alloy hubset from SPN Precision features HyperDrive 48-point, fail-safe engagement for instantaneous pick up and is 11-speed ready. And for wheels this fast, nothing is left to chance with aero bladed Sapim CX Ray spokes throughout. 

Average weight 1540g / pair.

K2Carbone X Series delivers ultimate speed 25mm SuperWide 3DToroid rim profile Sapim CX Ray aero bladed spokes Instant pick-up with HyperDrive-48 engagement 11 speed compatible Shimano / SRAM / Campag

Warranty Information

Warranty - One year
Crash Replacement Program - Five Years

Product Specifications

Weights (average, grams):
Front 705 / Rear 835 / Pair 1540
Rim Width, Depth (mm) & Profile:
25 wide x 50 deep / 3D Toroid
Spokes Front - 20:
Sapim CX Ray radial
Spokes Rear - 24:
Sapim CX Ray 2-cross drive / radial non-drive
11 Speed Drivetrain:
Shimano/SRAM standard, Campag Optional
What's In The Box:
Rim tape, QuickStop carbon brake pads, Quick Release skewers

Find Similar Products by Tag

Click the button below to add the K2 Carbone XXLR50 25mm Fat Boy Clinchers 1540g/pr to your wish list.