Introduction

The carbon fiber bicycle industry has been innovating and advancing all the time. Being lighter and stronger has always been the pursuit of the professional bicycle industry, especially for the mountain rims for XC (Cross Country) riding , where riders have extreme weight requirement. The Supreme Edition was created to explore the performance and weight limits of carbon fiber materials applied to bicycle wheels. We know that different materials would affect the performance and weight of rim products. What if we change the appearance design of a rim? Would it bring any difference or improvements in the strength and weight?

We have found that the most vulnerable part of a rim is the rim lip. If we could enlarge the area of rim lip where it contacts to the tire, in theory, under the same impact force, the pressure on a rim who has a wider lip area would be less, which could performance a higher impact resistance. Based on this theoretical premise, we newly designed the Supreme Edition Omega 36U mountain bicycle rim for cross country with a rim lip thickness at 3.0mm.

The impact test result reaches 105J for this Omega 36U rim. This is a huge improvement comparing to the Premium Edition. IMPACT TEST VIDEO (280g).

On date 2024.08.08, we successfully developed a lighter version of Omega 36U, the weight is 260g only. The impact test result reaches 100J. IMPACT TEST VIDEO (260g)

Impact Test Data (280g)

Experimental Rim	Omega 36U · 280g · 28Holes · Spoke Tension 120kgf · 29 x 2.25" Tire		Date 2024.06.15
Testing Items	Test Conditions (Pointed Hammer, 25psi)	Result	Result Description
Impact Test 1	Drop Hammer 21.5Kg · Drop Height 427mm	90 J	PASS
Impact Test 2	Drop Hammer 21.5Kg · Drop Height 450mm	95 J	PASS
Impact Test 3	Drop Hammer 21.5Kg · Drop Height 474mm	100 J	PASS · EXCELLENT
Impact Test 4	Drop Hammer 21.5Kg · Drop Height 498mm	105 J	PASS · EXCELLENT
Impact Test 5	Drop Hammer 21.5Kg · Drop Height 522mm	110 J	FAILED

Impact Test Data (260g)

Experimental Rim	Omega 36U · 260g · 28Holes · Spoke Tension 120kgf · 29 x 2.25" Tire		Date 2024.08.08
Testing Items	Test Conditions (Pointed Hammer, 25psi)	Result	Result Description
Impact Test 1	Drop Hammer 21.5Kg · Drop Height 427mm	90 J	PASS
Impact Test 2	Drop Hammer 21.5Kg · Drop Height 450mm	95 J	PASS
Impact Test 3	Drop Hammer 21.5Kg · Drop Height 474mm	100 J	PASS · EXCELLENT
Impact Test 4	Drop Hammer 21.5Kg · Drop Height 498mm	105 J	FAILED

What's in the Box

Carbon Rim(s)

Documentation

This rim could be used for Cross Country, Marathon, Endurance Cross Country, Trail riding. The tire size for this model of rim is recommended at 2.0" ~ 2.75". The tire pressure is recommended at 18 ~ 32 psi.

Learn more

Bicycle Tire Pressue Chart

Bicycle Tire Size Chart

What is ASTM Classification?

What are the Advantages of Tubeless-Ready Rims

What's the difference in XC vs. Endurance? Enduro vs. All-mountain?

What is the difference between weaves UD, 3K and 12K?

What is Free Coating Manufacturing (FCM) process?

What is ERD (Effective Rim Diameter)?

How much spoke tension should I use?

Basic

Model: Omega 36U
Rim Type: Mountain Bike (Clincher, Hookless)
Materials: Carbon Fiber Toray T1000 + T800
Brake Interface: Disc Brake
Edition: Supreme Edition
ASTM Classification: Condition 3
Warranty: 5 Years
Release Time: July 2024
Update Timeline: August 2024 (version 260g)

Specification

Size: 29"
BSD (Bead Seated Diameter): 622mm
ERD (Effective Rim Diameter): 594mm
Drillings: 24, 28, 32
External Width: 36mm
Internal Width: 30mm
Rim Height: 23mm
Spoke Bed Offset: 3.0mm
Rim Lip Thickness: 3.0mm
Weight: 260g | 280g
Valve Hole Diameter: 6.5mm (Presta)
Spoke Holes Diameter: 4.5mm
Spoke Holes Angle: Axial 6° | Radial 5°
Assembly Hole Diameter: 7.5mm
Drain Holes: Optional
Tubeless Compatible: Yes
Strength: 100J (260g) | 105J (280g) <Pointed Hammer, 25psi>

Recommendation

Tire Size: 2.0" ~ 2.75"
Tire Pressure: 22 ~ 32 psi
Spoke Tension: 100 ~ 130kgf
Max System Weight: 143Kg (260g) | 150Kg (280g)
Ideal Valve Stem Length: 35mm

Appearance

Carbon Weave: UD
Finish: Free Coating. Matte. Glossy

Application

application: Cross Country (XCO, XCM, XCC), Marathon, Endurance Cross Country, Trail

Best Features

Feature 1: 1. Material Upgrade: Toray T1000 Aerospace Grade Carbon Fiber Added.
Feature 2: 2. 3rd-Generation Layer-up Structure.
Feature 3: 3. Highly Strict Technical Test Methods — 100J for 260g & 105J for 280g <Pointed Hammer, 25psi>
Feature 4: 4. 23mm Low-Profile Optimization for Riding Comfort and Tubeless-Ready.

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[Omega 36U] Supreme Cross Country 29" Mountain Bicycle Carbon Rim 36mm 260g / 280g

Unit Price: 300.0 USD