Crankbrothers Synthesis Alloy 2.0 DH Rear Wheel 148x12mm Downhill MTB Hub

The Crankbrothers Synthesis Alloy 2.0 DH Rear 148x12 Wheel is engineered for downhill riders who demand strength, reliability, and precision from their wheels. Featuring the innovative Crankbrothers 148x12mm rear ratchet hub, this wheel is built to withstand the rigors of aggressive terrain while delivering smooth engagement and consistent performance. With its upgraded materials and refined construction, the Synthesis Alloy 2.0 is a dependable choice for riders seeking durability lap after lap.

Crafted from 6069 alloy, this wheel offers enhanced tensile and shear strength compared to previous models, ensuring longevity and resistance to fatigue even under the harshest conditions. The shot-peened finish not only adds a sleek, refined look but also improves the rim’s resistance to cracking and wear, extending its life significantly. Additionally, the redesigned rim profile optimizes sidewall geometry and material distribution, providing superior impact resistance and greater overall stiffness tailored specifically for rear wheel demands.

Designed with a focus on performance and durability, the Synthesis Alloy 2.0 rear wheel balances stiffness and strength to reduce pinch flats and improve traction, making it a reliable partner for downhill trails. Every component, from the Pillar SSB 34 spokes to the 32-spoke count and 29.5mm inner rim width, has been chosen to deliver a robust and responsive ride. Backed by a lifetime warranty, this wheel exemplifies Crankbrothers’ commitment to quality and rider confidence.

What It’s Good For

• Downhill mountain biking where durability and strength are critical
• Riders looking for a reliable rear wheel with enhanced engagement and stiffness
• Handling aggressive terrain with improved resistance to impacts and wear
• Reducing pinch flats thanks to optimized rim design and robust construction
• Long-term use supported by a comprehensive lifetime warranty

What It’s NOT Good For

• Casual riding or non-aggressive trail use where lighter wheels might be preferred
• Riders seeking wheels for road cycling or lighter cross-country disciplines
• Users who do not require the enhanced toughness and can opt for more budget-friendly options
• Those unwilling to maintain the wheel properly, as improper maintenance voids warranty

Frequently Asked Questions

What makes the Synthesis Alloy 2.0 different from previous models?
The Synthesis Alloy 2.0 features upgraded 6069 alloy for improved strength, a shot-peened finish for enhanced durability, and a re-engineered rim profile designed for better impact resistance and longevity, setting it apart from older versions.

Is this wheel compatible with all downhill bikes?
This wheel is designed with a 148x12mm rear hub standard, making it compatible with most modern downhill mountain bikes that accept this hub size and axle specification.

What does the lifetime warranty cover?
The warranty covers manufacturing defects, damage caused by crashes during normal riding, dents or flat spots on the rim where the tire no longer holds air, and seam separation or cracks at the spoke hole area. It does not cover normal wear and tear, improper assembly, misuse, or labor charges.

Can I upgrade the hub engagement on this wheel?
Yes, the hub engagement can be upgraded from 10° to a faster 6.6° engagement by purchasing the 54T ratchet upgrade kit (CRB-17045) separately.