Magene EXAR DB405 Ultra Wheelset HG (2025)

The Magene EXAR DB405 Ultra Wheelset HG (2025) is built for riders who want a fast, responsive carbon wheel upgrade that still feels stable and predictable on real roads. With a 40 mm front / 45 mm rear rim profile, it targets the sweet spot between climbing efficiency and aerodynamic assistance—ideal for rolling Brisbane routes, windy coastal loops, and long endurance rides across Queensland and Australia. This wheelset is designed specifically for disc brake road bikes, featuring a modern wide rim profile and premium components through the hub and spoke system.

Integrated design for quicker acceleration and efficient power transfer

Magene’s Ultra platform uses an integrated approach to maximise stiffness while controlling weight. The rims and spokes use HI‑MOD T800 carbon fibre, aiming to deliver a direct feel when you jump on the pedals, surge out of corners, or climb out of the saddle. The lighter rim depths also help the wheelset spin up quickly, making it well suited to riders who value acceleration and responsiveness as much as top‑end speed.

Low front / higher rear concept for stability and speed retention

The DB405 follows the Ultra series design strategy of a lower front rim and slightly higher rear rim. The intent is to keep front‑wheel handling calm and controllable while the rear wheel supports momentum and efficiency. For riders dealing with variable crosswinds or gusty conditions, this split depth helps balance confidence and pace.

30 mm wide rims tuned for 28–32c tyres

The rim profile is built around modern tyre widths, with a 30 mm external width and 23 mm internal width. The suggested tyre range of 28–32c supports a flatter tyre‑to‑rim interface, improving comfort and maintaining stable handling without sacrificing aero efficiency. The rim is hooked and compatible with both tubeless and clincher setups, allowing you to choose between lower‑pressure tubeless comfort or the simplicity of tubes.

Carbon spokes and balanced lacing for stiffness

The wheelset uses HI‑MOD T800 carbon fibre spokes with a 2:1 balanced lacing pattern intended to distribute spoke tension effectively, particularly at the rear wheel where drivetrain forces are highest. Spoke tension targets are specified as:

• Front: 110 kgf ±10%
• Rear: 130 kgf ±10% (drive side), 110 kgf ±10% (non‑drive side)

This configuration is designed to improve stiffness and reduce strength loss through the wheel when you accelerate or climb hard.

Ceramic bearings and fast engagement hub

Magene specifies ceramic bearings to support smoother rolling and lower resistance compared with standard steel bearings. Engagement is handled by a 36‑tooth flat ratchet, designed for reliable pickup and durability via a larger contact surface. A 54T ratchet upgrade is noted as available separately for riders who want faster engagement.

Shimano HG freehub installed with upgrade paths

This wheelset ships with a Shimano HG 11‑speed freehub installed, making it a straightforward fit for many Shimano road drivetrains. If you run SRAM or Campagnolo, SRAM XDR and Campagnolo N3W freehub bodies are available separately.

Testing note (as provided)

The product description states the wheelset has passed an impact test described as 40J applied to the bare carbon rim with deviation meeting UCI standards. If you need official documentation or model listing, confirm via manufacturer/distributor certification paperwork.

Specifications (Quick Reference)

• Brake: Disc only
• Rim height: 40 mm front / 45 mm rear
• Wheelset weight: 1290 g ±3%
• Max rider + bike system weight: 110 kg
• External rim width: 30 mm
• Internal rim width: 23 mm
• Rim material: HI‑MOD T800 carbon fibre
• Bearings: Ceramic
• Spokes: HI‑MOD T800 carbon fibre (2:1 lacing)
  • Front tension: 110 kgf ±10%
  • Rear tension: drive side 130 kgf ±10%, non‑drive side 110 kgf ±10%
• Ratchet: 36T (54T option available separately)
• Axle: 12×100 front / 12×142 rear thru‑axle
• Freehub supplied: Shimano HG 11‑speed installed
  • Optional freehubs: SRAM XDR, Campagnolo N3W (sold separately)
• Tyre compatibility: 25c and above (suggested 28–32c)
• Rim type: Hooked, clincher + tubeless compatible