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Koppenberg M21 - these Wide Boys are 23mm across & weigh 1510g/pr

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Hand built to order: usually built & dispatched in around one week

Bullet Proof Light Alloy

K2 Koppenberg M21s deliver light weight, lateral stiffness and stable handling in all riding conditions thanks to their 23mm superwide section, 21mm deep 3D2 metal matrix rim profiles.

The matching black superlight forged & machined alloy hubset from SPN Precision features HyperDrive 48-point fail-safe engagement and is 11-speed ready. And Sapim double-butted Race spokes complete the build at a price-busting sub-£450 per pair. 

If you're over 75kg, please leave a note during checkout with your weight so we can optimise the build of your wheels.

Average 1510g / pair.

K2 Koppenberg M Series Alloy: bullet-proof wide pro rim extrusions 23mm SuperWide 3D2 metal matrix rim profile Sapim Race Black double-butted 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 680 / Rear 830 / Pair 1510
Rim Width, Depth (mm) & Finish:
23 wide x 21 deep / 3D Black MetalMat
Spokes Front - 20 Radial:
Sapim Race
Spokes Rear - 24 Two-cross:
Sapim Race
11 Speed Drivetrain:
Shimano/SRAM standard, Campag Optional
What's In The Box:
Rim tape, Quick Release skewers

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21mm  23mm  alloy  k2  metal  wheels  

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