Novatec R4 pro+ 700c 45mm Disc Brak Carbon Wheelset

The Novatec R4 Pro+ is a 45 mm-deep disc brake carbon road wheelset built with a DRS Dual Ratchet System hub and Sapim spokes, striking a balance between climbing handling and aerodynamic performance.

Key Highlights

• Category: Carbon disc brake road wheelset, 45 mm rim height
• Brand: Novatec (Taiwanese hub and wheelset brand)
• Hub: DRS Dual Ratchet System hub (36T), straight-pull spokes, Center Lock rotor mount
• Key numbers: 27.9 mm external rim width, approx. 1,290 g wheelset weight (pair)
• Compatibility: Shimano 11/12-speed as standard; SRAM 12-speed requires an XDR driver body (SRAM version available); please contact us before ordering for other cassette combinations
• Best for: Riders upgrading a disc brake road bike to carbon wheels who want a balance of climbing handling and aerodynamics for mixed terrain

DRS Dual Ratchet System Hub for Direct Power Transfer

The R4 Pro+ uses the same DRS (Dual Ratchet System) hub found across Novatec's Premium range, with a 36T ratchet and a 10-degree engagement angle for quick, direct power transfer when pedalling. The hub design is simple to service, and an 18T ratchet option is available for those who prefer it. The hub is 100% compatible with the DT Swiss 54T ratchet (part no. HWTXXX00NSK54S) for future upgrades.

Tubeless Ready, Clincher Compatible

The rims are Tubeless Ready out of the box while remaining fully compatible with traditional clincher tyres and tubes, so riders can choose their preferred setup. The 27.9 mm external width suits the current trend toward wider tyres, offering a more stable tyre profile and road feel.

Novatec R Series Rim Height Comparison: R4 / R5 / R6

The Novatec R Series shares the same Pro+ tier hub and materials across the range, with rim height as the main difference. Jollymap stocks these three:

Specifications sourced from Novatec's official product data (novatecwheels.eu, Novatec Taiwan's official page). Weight is measured on a different basis for each model (R5 excludes tubeless rim tape; R6 Gen 1 includes it). The R6 Pro+ also has a second generation — see Novatec R6 PRO+ Gen2.

Each rim height suits a different priority: 45 mm balances climbing handling and aerodynamics with less crosswind effect, good for mixed terrain; 50 mm is a middle-ground depth balancing speed and weight; 60 mm offers the most aerodynamic benefit for flat and rolling terrain at speed, though crosswind effect is more noticeable.

Technical Specifications

Brand	Novatec
Rim height	45 mm
Rim material	Carbon fibre
External rim width	27.9 mm
Internal rim width	21 mm
Wheelset weight	Approx. 1,290 g (pair)
Spokes	Sapim
Hub	DRS Dual Ratchet System hub (36T), straight pull, Center Lock
Axle	Front 12 mm x 100 mm, Rear 12 mm x 142 mm
Cassette compatibility	Shimano 11/12-speed; SRAM 12-speed requires an XDR driver body (SRAM version available); contact us before ordering for other cassette combinations
Max rider weight	120 kg

Specifications sourced from Novatec's official product data (novatecwheels.eu). Rotor mount is Center Lock only; there is no 6-bolt version.

Jollymap's Recommendation

If your disc brake road bike came with alloy wheels and you want to save weight while keeping all-round handling, the R4 Pro+'s 45 mm rim height is a solid starting point. If you mostly ride flat routes or time trials, consider the deeper R5 Pro+ Gen 5 or R6 Pro+ Gen 1 instead. Compatibility with your bike's axle spacing, rotor mount and frame clearance should be confirmed before ordering — please share your bike model and current wheelset specs with us.

FAQ

How much does the Novatec R4 Pro+ wheelset weigh?

Approximately 1,290 g per pair, based on Novatec's official data. Actual weight may vary slightly by finish, decals and production batch.

What's the difference between the R4, R5 and R6, and how do I choose?

All three share the same hub system and materials — the main difference is rim height: R4 is 45 mm (better climbing handling), R5 is 50 mm (a middle-ground depth), and R6 is 60 mm (most aerodynamic but more affected by crosswinds). See the comparison table above for full details.

What rotor mount does this wheelset use? Can I fit 6-bolt rotors?

The hub uses a Center Lock rotor mount only; there is no 6-bolt version. If your current rotors are 6-bolt, you will need Center Lock rotors or a conversion adaptor.

Can I fit a SRAM cassette?

Yes. This wheelset is sold in Shimano and SRAM versions (selectable at checkout); the SRAM version uses an XDR driver body. If you purchase the Shimano version, you can also swap to an XDR driver body later to run a SRAM 12-speed cassette.

Is this wheelset tubeless out of the box?

The rims are Tubeless Ready out of the box and remain fully compatible with traditional clincher tyres and tubes. Novatec states tubeless valves are not included; please contact us before ordering about accessories (e.g. tubeless valves, sealant) needed for conversion.

Will this wheelset fit my current road bike?

Compatibility depends on your frame's axle spacing, rotor mount and frame clearance. We recommend you contact us before ordering with your bike model and current wheelset specs so we can confirm fitment.

How should I maintain a carbon wheelset in Hong Kong's humid climate?

Dry the rims and hub surfaces after riding in rain, and avoid storing the wheels somewhere damp for long periods. The hub bearings should be checked and lubricated regularly to reduce the risk of corrosion, and brake pads and rotors should also be checked for wear.

Last updated: September 2026