The 42|49 SL is the wheel for "Race Day, Every Day." It balances the aerodynamic stability required for fast group rides and breakaways with a weight profile usually reserved for shallow climbing rims. The 42mm front rim is designed with a wider, blunted profile (34.4mm external) to ensure the bike remains stable in crosswinds, while the 49mm rear rim is narrower and deeper to minimise drag where the airflow is more turbulent.
The heart of this wheelset is the Tune Pico hubset. Machined from 7075-T6 aluminium in Buggingen, Germany, these hubs were specifically designed to align with the unique offset and ERD of Reserve's SL rims. This alignment allows the Vonoa carbon spokes to run in a perfectly straight line, maximising energy transfer and eliminating the fatigue points found in traditional steel-spoke J-bend designs.
If you are deciding between the Standard (DT Swiss) and the SL (Tune/Carbon Spoke) versions of the 42|49:
Weight: The SL version is roughly 200g lighter than the DT 350 version and 50g lighter than the flagship DT 180 version.
Feel: The carbon spokes make the SL version feel significantly stiffer. If you enjoy a "snappy" ride where the bike jumps forward with every pedal stroke, the SL is the clear choice. If you prefer a more damped, "quiet" road feel, the steel-spoked DT 180 build is often more comfortable for 100km rides.
Tyre Match: For the best balance of speed and comfort on this wide rim, a 30mm Continental GP5000 S TR is the benchmark setup. It expands to roughly 32mm on this rim, providing massive cornering confidence.
Turbulence Tuned: Developed using real-world wind data rather than just wind-tunnel simulations, resulting in a wheel that feels "faster" on open, gusty roads.
Vonoa Carbon Spokes: These bladed spokes offer a significant increase in lateral stiffness compared to steel, providing a "telepathic" response during sprints.
Wide Internal Bed: The 25.4mm front and 24.8mm rear internal widths are designed to perfectly support modern 29mm - 30mm tyres at lower pressures.
Semi-Hooked Rim: Ensures maximum safety and compatibility with all major tyre brands while maintaining the aero-profile benefits of a hookless rim.
| Specification | Detail | Notes | |
| Rim Material | Carbon Fibre (30|SL) | Optimized for trail compliance. | |
| Internal Width | 30mm | Perfect for 2.3" to 2.5" tyres. | |
| Specification | Detail | Notes | Notes |
| Wheelset Weight | 1,290g | Including tape, valves, and lockrings. | Bonded lenticular construction. |
| Rim Depth | 42mm Front / 49mm Rear | Staggered for stability and aero. | Optimized for 28mm�35mm tyres. |
| Internal Width | 25.4mm Front / 24.8mm Rear | Supports wider modern road rubber. | Maximises aerodynamic transition. |
| External Width | 34.4mm Front / 32.1mm Rear | Blunted profile for crosswind stability. | Combined: ?2,167g. |
| Hub Type | Tune Pico (Carbon Spoke Dedicated) | Machined 7075-T6 alloy; Centerlock. | Bonded interface; high-grade bearings. |
| Spokes | Vonoa Carbon (Straight Pull) | 24 Front / 24 Rear. | Optional Track (Bolt-on) available. |
| Engagement | 5.2-degree(69 POE) or 2.6-degree (138 POE) | Adjustable via Tune pawl kits. | Standard Road/TT Thru-Axle. |
| Asymmetric Offset | 0mm Front / 1.8mm Rear | Minimal offset for balanced tension. | Typically ships with both drivers. |
| Max Tyre Pressure | 100�PSI (6.9�bar) | Semi-hooked bead for high-pressure safety. | Hooked rim for high-pressure safety. |
| Warranty | Lifetime (No Rider Weight Limit) | Includes 4 replacement Vonoa spokes. | Or tyre manufacturer's limit. |
| UK Price | �2,999.00 | Limited edition WorldTour specification. | Includes No-Fault Crash Replacement. |
| Specification | Detail |
| Rim Material | Carbon Fibre (30|SL) |
| Internal Width | 30mm |
| Specification | Detail |
| Wheelset Weight | 1,290g |
| Rim Depth | 42mm Front / 49mm Rear |
| Internal Width | 25.4mm Front / 24.8mm Rear |
| External Width | 34.4mm Front / 32.1mm Rear |
| Hub Type | Tune Pico (Carbon Spoke Dedicated) |
| Spokes | Vonoa Carbon (Straight Pull) |
| Engagement | 5.2-degree(69 POE) or 2.6-degree (138 POE) |
| Asymmetric Offset | 0mm Front / 1.8mm Rear |
| Max Tyre Pressure | 100�PSI (6.9�bar) |
| Warranty | Lifetime (No Rider Weight Limit) |
| UK Price | �2,999.00 |
| Specification | Notes |
| Rim Material | Optimized for trail compliance. |
| Internal Width | Perfect for 2.3" to 2.5" tyres. |
| Specification | Notes |
| Wheelset Weight | Including tape, valves, and lockrings. |
| Rim Depth | Staggered for stability and aero. |
| Internal Width | Supports wider modern road rubber. |
| External Width | Blunted profile for crosswind stability. |
| Hub Type | Machined 7075-T6 alloy; Centerlock. |
| Spokes | 24 Front / 24 Rear. |
| Engagement | Adjustable via Tune pawl kits. |
| Asymmetric Offset | Minimal offset for balanced tension. |
| Max Tyre Pressure | Semi-hooked bead for high-pressure safety. |
| Warranty | Includes 4 replacement Vonoa spokes. |
| UK Price | Limited edition WorldTour specification. |
| Specification | |
| Rim Material | |
| Internal Width | |
| Specification | Notes |
| Wheelset Weight | Bonded lenticular construction. |
| Rim Depth | Optimized for 28mm�35mm tyres. |
| Internal Width | Maximises aerodynamic transition. |
| External Width | Combined: ?2,167g. |
| Hub Type | Bonded interface; high-grade bearings. |
| Spokes | Optional Track (Bolt-on) available. |
| Engagement | Standard Road/TT Thru-Axle. |
| Asymmetric Offset | Typically ships with both drivers. |
| Max Tyre Pressure | Hooked rim for high-pressure safety. |
| Warranty | Or tyre manufacturer's limit. |
| UK Price | Includes No-Fault Crash Replacement. |