Crankbrothers Synthesis DH/E-Bike Alloy 2.0 Rim - 31mm Front / 29.5mm Rear, Lifetime Warranty
The Crankbrothers Synthesis Alloy 2.0 DH/E-Bike Rim is the most robust rim in the Synthesis line-up, purpose-built to handle the immense forces of Downhill racing, bike park laps, and the added weight and torque of an E-Mountain Bike. Similar to the Enduro version, it uses the Tuned Wheel System, but with wider, burlier rim profiles.
The Crankbrothers Synthesis Enduro Alloy 2.0 Rim represents the next generation of their unique, performance-oriented alloy wheels. This 2.0 version maintains the revolutionary Tuned Wheel System concept—where the front and rear wheels are specifically engineered for their distinct tasks on the trail—while dramatically boosting durability and reliability.
Choose the Synthesis Enduro Alloy 2.0 Rim to build a world-class, custom wheelset that is perfectly tuned for aggressive Enduro and All-Mountain riding.
Improved Material: The alloy has been upgraded from 6013 to 6069 Aluminium Alloy, delivering significantly superior tensile, yield, and shear strength. This drastically enhances resistance to dents, cracks, and deformation.
Enhanced Finish: The rim receives a shot-peened finish, strengthening the outer layer and increasing fatigue life and crack resistance.
Reinforced Geometry: The rim profile has been re-engineered with thicker rim walls in high-impact areas to boost durability and reduce the risk of pinch flats.Lifetime Warranty: Due to the enhanced strength, the 2.0 rim is now covered by a Lifetime Warranty for the original owner against defects and on-trail damage that prevents the tyre from holding air.
Tuned Performance Concept:
The Front Rim (30mm internal width): Engineered to be Compliant. The wider 30mm inner width enhances tyre volume, increases the contact patch, and promotes better grip and steering control. Designed for a 28-Hole count for subtle vertical flex.
The Rear Rim (28.5mm Internal Width): Engineered to be Stiff. The narrower 28.5mm inner width and a 32-Hole spoke count maximise stability, power transfer, and durability, ensuring precise tracking when smashing through rough terrain.
Tuned Front/Rear Concept: Different widths, profiles, and recommended spoke counts/tensions optimise performance for each end of the bike.
High-Grade Alloy: Constructed from premium Aluminium, offering enhanced resistance to dents, cracks, and deformation.
Front Grip: 30mm inner width on the front rim enhances tyre volume, contact patch, and cornering grip.
Rear Stability: 28.5mm inner width on the rear rim enhances stability and tracking under load.Enduro Ready: 20mm rim height and reinforced geometry built to withstand the rigours of aggressive trail and Enduro riding.Warranty:
| Specification | Front Rim (Compliant) | Rear Rim (Stiff) | Notes |
| Model Version | Synthesis DH/E-Bike Alloy 2.0 | Synthesis DH/E-Bike Alloy 2.0 | The strongest alloy rim in the Synthesis 2.0 line-up. |
| Rim Material | 6069 Aluminium Alloy | 6069 Aluminium Alloy | Shot-peened finish for increased surface strength. |
| Intended Use | Downhill / E-MTB / Freeride | Downhill / E-MTB / Freeride | Built to handle higher speeds and impacts than the Enduro version. |
| Inner Rim Width | 31mm | 29.5mm | Wider than the Enduro version for greater stability and volume. |
| Rim Height/Depth | 20mm | 20mm | Shallow profile designed to enhance vertical compliance. |
| Tyre Compatibility | Tubeless Ready (Clincher) | Tubeless Ready (Clincher) | Recommended for wider DH/E-MTB tyres. |
| Joint Type | Welded and Sleeved | Welded and Sleeved | Ensures maximum structural integrity under heavy loads. |
| Spoke Hole Count | 28 Hole (H) | 32 Hole (H) | Lower count front for compliance; higher count rear for durability and stiffness. |
| Size Options | 27.5in (ETRTO 584mm), 29in (ETRTO 622mm) | 27.5in (ETRTO 584mm), 29in (ETRTO 622mm) | Available for both wheel sizes. |
| Weight (Approx. 29in) | ?606g | ?600g | Significantly higher weight reflects the increased wall thickness/strength. |
| Effective Rim Diameter (ERD) | 596mm (29in) / 558mm (27.5in) | 596mm (29in) / 558mm (27.5in) | Critical measurement for spoke length calculation. |
| Warranty | Lifetime (Original Owner) | Lifetime (Original Owner) | Excellent protection against defects and riding damage. |
| Specification | Front Rim (Compliant) |
| Model Version | Synthesis DH/E-Bike Alloy 2.0 |
| Rim Material | 6069 Aluminium Alloy |
| Intended Use | Downhill / E-MTB / Freeride |
| Inner Rim Width | 31mm |
| Rim Height/Depth | 20mm |
| Tyre Compatibility | Tubeless Ready (Clincher) |
| Joint Type | Welded and Sleeved |
| Spoke Hole Count | 28 Hole (H) |
| Size Options | 27.5in (ETRTO 584mm), 29in (ETRTO 622mm) |
| Weight (Approx. 29in) | ?606g |
| Effective Rim Diameter (ERD) | 596mm (29in) / 558mm (27.5in) |
| Warranty | Lifetime (Original Owner) |
| Specification | Rear Rim (Stiff) |
| Model Version | Synthesis DH/E-Bike Alloy 2.0 |
| Rim Material | 6069 Aluminium Alloy |
| Intended Use | Downhill / E-MTB / Freeride |
| Inner Rim Width | 29.5mm |
| Rim Height/Depth | 20mm |
| Tyre Compatibility | Tubeless Ready (Clincher) |
| Joint Type | Welded and Sleeved |
| Spoke Hole Count | 32 Hole (H) |
| Size Options | 27.5in (ETRTO 584mm), 29in (ETRTO 622mm) |
| Weight (Approx. 29in) | ?600g |
| Effective Rim Diameter (ERD) | 596mm (29in) / 558mm (27.5in) |
| Warranty | Lifetime (Original Owner) |
| Specification | Notes |
| Model Version | The strongest alloy rim in the Synthesis 2.0 line-up. |
| Rim Material | Shot-peened finish for increased surface strength. |
| Intended Use | Built to handle higher speeds and impacts than the Enduro version. |
| Inner Rim Width | Wider than the Enduro version for greater stability and volume. |
| Rim Height/Depth | Shallow profile designed to enhance vertical compliance. |
| Tyre Compatibility | Recommended for wider DH/E-MTB tyres. |
| Joint Type | Ensures maximum structural integrity under heavy loads. |
| Spoke Hole Count | Lower count front for compliance; higher count rear for durability and stiffness. |
| Size Options | Available for both wheel sizes. |
| Weight (Approx. 29in) | Significantly higher weight reflects the increased wall thickness/strength. |
| Effective Rim Diameter (ERD) | Critical measurement for spoke length calculation. |
| Warranty | Excellent protection against defects and riding damage. |