COSMIC SLR 32 DISC 21mm

Main features

Mavic Ceramic : Premium bearings materials, premium performance

With its special properties, ceramic makes bearings spin a little faster and are more durable. Together with premium ceramic material, we use premium low-density grease paired with ultra slick seals.

Adaptive Layup : Strong where it matters, light everywhere else

Carbon is lighter than alloy, but weight always add up.
Using the right amount of fibers where the rim is less stressed to reduce rim weight with no compromise on reliability, this gives wheels that are livelier and more enjoyable while climbing. Up to 70g saved per rim.

FORE : Stiffer, high precision and durable rim/spokes link with convenient Tubeless benefits

The lower bridge of the rim is threaded to receive the spokes directly at the appropriate angle. This gives a stiff link, no spoke movement (less spoke break), and the rim upper bridge remains undrilled so 100% airtight for easy Tubeless set up.

Key technology

LightnessAdaptive Layup Carbon technology
Strong where it matters, light everywhere else
Efficiency RigidityFore technology
Stiffer and stronger. Instead of being drilled, the lower rim bridge is pushed up on the inside, then threaded to enable the spoke nipples to be directly screwed in it, leaving the upper rim bridge intact.
Efficiency RigidityInstant Drive 360 freewheel technology
The new Instant Drive 360 freewheel system is super light and efficient. A large contactless rubber seal provides low friction, while a wide array of end caps makes it super versatile.
Efficiency RigidityUST tubeless technology
Traction and control. Universal Standard for Tubeless. Ready to ride tubeless system. The UST concept improves traction, control and comfort whilst reducing inertia and flats.
Safety ReliabilityInfinity hub design
Efficient power transfer thanks to optimised non-contact spoke lacing (no noise under load) and tension distribution. The length of the spokes at the front and rear is identical. Maintenance is easy thanks to a tool-free solution.

Specifications

  • Weight Pair : 1390 g
  • Weight Front : 630 g
  • Weight Rear : 760 g
  • Material: 100% Unidirectional carbon fiber
  • Height: 32 mm
  • Internal width: 21 mm
  • Drilling: Fore Carbon tapeless tubeless technology (front/rear 24 holes)
  • Braking: disc
  • ETRTO size: 622x21TC
  • Tire: UST Tubeless Ready
  • Shape: straight, aero, constricted, antirot (front and rear)
  • Screw: M6
  • Lacing: crossed 2 (front and rear) 
  • Body material: aluminium
  • Disc standard: Center Lock® only
  • Axle material: aluminum
  • Axle size: front 12x100 / rear 12x142
  • Freewheel: Shimano HG road / Sram XD road
  • Bearings : Mavic Ceramic
  • Freewheel body: convertible SRAM XD road (kit V2580101 sold separately)
  • Freewheel body: convertible SHIMANO HG light road (kit V3850101 sold separately)
  • Freewheel body: convertible CAMPAGNOLO N3W (kit V4270101 sold separately)
  • User guide
  • Rim tape mounted on wheel
  • UST valve not mounted on wheel
  • Minimum tyre size: width 25mm - pressure max. 6.1Bar/88PSI
  • Maximum tyre size: width 64mm - pressure max. 3.5Bar/51PSI
  • ASTM category 2 : road and offroad with jumps less than 15cm
  • Maximum weight supported by the wheels: must not exceed 120 kg (bike weight included)

Cyclists' opinions

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ericAmateur (1–2 rides per week)
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10/18/25
“super roues ..rapide efficace en montee que du bonheur un peu moins raide sur le plat que les look rd 38 que j avais ..mais je regrette pas .. c est du bon ”

to
tommasoAmateur (1–2 rides per week)
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12345
9/22/25
“Ottima resa pianura e salita, facile da controllare in qualunque situazione provata con copertura e camere leggere Tpu. Thomas”

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COSMIC SLR 32 DISC 21mm
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