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Beast Components RX40 Carbon Disc Clincher Rim - 21-622 - 24 Hole - UD black

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Description of Beast Components RX40 Carbon Disc Clincher Rim - 21-622 - 24 Hole - UD black

With its aerodynamic shape, the Beast Components rim embodies pure speed on the road.


Beast Components RX40 road rim for 28"
Low weight, unique appearance and yet uncompromisingly stable and robust. 

Super-light and super-stiff for crazy acceleration. You’ll love every turn of your pedals. The new geometry with modern inner width is optimized for 25mm wide tires and the laminate is designed for maximum stiffness. This has made the rim the embodiment of pure speed on the road. 

The RX40 is in no way inferior to the RR40. Extremely light, enormously stiff and of course just as aerodynamically optimized. New is the hooked design. This means there is no longer any restriction in the choice of tyres.

Len Imes, an expert in computational fluid dynamics (CFD) from iXent in Munich and former professor at Stevens Institute of Technology, has subjected the RX40 rim profile to aerodynamic analysis and optimized it using CFD for minimum air resistance in various riding scenarios. 



Material: Carbon
Outer width: 25mm, 27mm (arched)
Inner width: 21mm
Height: 40mm
Holes: 24
Rim weight: from 393g
Weight tolerance: 5%
Weight limit: non


Tubeless Ready
Hookless Design
Disc Only
Slanted Spoke Holes
Hidden Spoke Nipples

Beast Components - Handmade in Germany

The Beast Carbon components are produced entirely in-house at the Black East GmbH in Dresden, Germany - here bikes are loved and lightweight construction is lived. The quite young company is a spin-off of the Rolls-Royce University Technology Centre, a dedicated engineering department at the Technische Universität Dresden. Thus, the scientific standard when working with carbon as a material is the first priority. Using state-of-the-art techniques from the automotive industry, aerospace and innovative manufacturing processes, the quality and practicality of road and mountain bikes is expected to benefit and improve significantly. Final stage geometry optimizations and life expectancy of fiber-reinforced plastics are central keywords here. 

With Beast Carbon components, the style comes to the bike - considerably lighter and stronger than ever before!


Weight supplement: manufacturer's information, tolerance 5%.




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Fact Sheet of Beast Components RX40 Carbon Disc Clincher Rim - 21-622 - 24 Hole - UD black

Product Name: Beast Components RX40 Carbon Disc Clincher Rim - 21-622 - 24 Hole - UD black
Manufacturer: Beast Components
Item Code: BEA481338
activity: Bike
material: Carbon
usage bikesport: Road Bike, Competition
brake type: Disc Brake
wheel size: 28" (29") (622mm)
tire type: Wire Bead Tire, Folding Tire, Tubeless Ready
spoke hole number: 24
ERD - effective rim Ø: 557mm
ETRTO: 21-622
eyelets: none
rim width: 27mm
inner profile width: 21mm
rim profile height: 40mm
Model year: 2021
Color: Black
weight: 370g
manufacturer item code: RX21402428US1
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