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3T Orbis II C50 LTD Stealth Wheelset

  • 3T Orbis II C50 LTD Stealth Wheelset
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Product Description

The Orbis II C50 Ltd Stealth Wheelset is the premium medium-depth clincher wheelset from the 3T Orbis II range of rim-brake wheels. Wide 25mm all-carbon-fibre rims ideally support fat, race-weight clincher tyres at lower inflation pressures, for more grip and comfort.

The 3T linear+ system optimises build quality; spoking is 20 front/24 rear, with internal inverted nipples. The carbon-fibre rim is 50mm deep, with a blunt profile for stable aerodynamic performance at typical angles to the wind. Sapim CX-Ray spokes and ceramic speed bearings are standard, saving a further 65g over the 3T Team model wheelset for an all-up weight of 1.537kg.


  • Wider contact surface
  • Less rolling resistance
  • Reduced incidence of punctures
  • Better handling control
  • Rim size: ETRTO 622 x 17C, (28”/700c), 25mm wide, 50mm deep
  • Rim spec: Clincher, full carbon, high temperature braking surface, double angle drilling
  • Spokes: Straight pull, stainless steel, black finish, double butted aero, Sapim CX-Ray, 20F/24R
  • Nipples: Light alloy, inverted, spherical washer
  • Hubs: Light alloy hub bodies, spindles and fw-body, ceramic speed bearings, black anodised
  • Rear hub compatibility: 10/11s Shimano/SRAM type cassette (campy fw-body sold as spare - not compatible with sprockets that require SRAM XD driver body)
  • Quick Release: Alloy lever and nut, steel rod
  • Weight: 1.537kg


3T Wheel Technology

Orbis II wheels have 25mm wide rims that provide an ideal platform for today’s wider-section road and gravel tyres. You can run these wheels at a lower inflation pressure for better rider comfort and endurance with no penalty to speed.

Ltd Stealth wheels have all-carbon-fibre rims and up-to-date aerodynamic profiles, so you won’t be slowed by wind drag or thrown offline by gusts.

The 3T linear+ system unites the best all-round techniques for building robust, responsive and lightweight wheels which in normal use will give you years of riding pleasure.

Full-Aero Wider Rims

3T Orbis II wheels have 25mm rims which are the new, wider standard for today’s breed of fatter, lightweight tyres.

A wider rim lets you run the latest race-weight tyres at lower pressure. The tyre’s wider, shorter contact patch with the road surface gives you more grip and comfort than traditional narrow tyres at high inflation pressures.


At the same time, 3T rims are aerodynamically profiled for low drag at typical yaw angles.

This means with Orbis II wheels you get;

  • More comfort
  • Better handling control
  • Less rolling resistance
  • Reduced incidence of punctures
  • Low and stable wind drag

Linear+ Optimised Build

3T linear+ system optimises all-round build quality. Orbis II wheels have straight spokes that run directly from hub to nipple. Spoke ends locate perfectly square in the purpose-designed hubs; and at the nipple end, the rim drillings are angled perfectly in line with the spoke.

Nipples are internal, so rim drillings are no wider than needed to pass the spoke through. This benefits strength, appearance, and aerodynamics. Nipples are screwed on upside-down, bearing on the rim’s internal surface via a cup washer. This distributes the load evenly on the rim so spokes can safely be done up tighter.

Compared with traditional wheels built with J–bend spokes, 3T linear+ have;

  • Better load distribution
  • Better spoke alignment
  • Less drag
  • Better durability

Asymmetric Rim

The 3T Linear+ system is further enhanced in some models by asymmetric rims.

Front wheels with disc brakes, as well as rear wheels (with or without discs), have off-centre hub flanges. On one side the spokes are at a steeper bracing angle, so they must be tensioned more. The 3T asymmetric rim compensates for this by reducing the difference in bracing angle between the two sides.

Spoke tensioning is more equal to either side, making a better-performing, more resilient wheelset with better lateral stiffness. Linear+ ensures that rim drillings are perfectly aligned to meet these demanding mechanical requirements.

Both the 58mm and 32mm rims have an asymmetric structure and double-angled spoke drillings, for a perfectly balanced wheelset. Additionally, 3T Orbis II hubs have double-cross spokes on both sides. Opposite spokes on the same side are perpendicular to each another, so directly opposed. This equalises spoke load under torque for better power transfer without spoke wind-up, a key benefit when braking is effected at the hub, as well as when accelerating.

Taken together, these measures result in;

  • Reduced wheel dish
  • Reduced L-R spoke-tension difference
  • Greater lateral strength
  • Optimal torque transfer
  • Minimal spoke wind-up when braking and accelerating

Modular Hub Spindles

3T Orbis II hubs have a light-alloy, oversize spindle with modular end-caps. The modular end-caps allow you to easily change from quick-release to thru-axle, and back again. You can use your 3T wheelset on several bikes of different configurations:

  • Front: QR 100 mm or TA 15 x 100 mm
  • Rear: QR 135 mm; TA 135 x 12 mm; TA 142 x 12 mm

Advanced Carbon-Fibre Technology

3T’s mastery of carbon-fibre design and manufacture means production of the most advanced rims in the business.

3T Orbis II rims are constructed with top-grade high-modulus carbon-fibre, with proprietary resins custom-formulated for each product.

Manufacture involves high-accuracy lamination and high-pressure, low-temperature, long-cycle curing times. Production flow is traced from raw materials to finished product for end-to-end quality assurance.

As a result, 3T rims have;

  • Exceptional strength-to-weight ratio
  • Superb impact resistance
  • Extended service life


  • Colour: Black
  • Wheel Size: 700c
  • Option: Shimano Freehub
  • Speed: 9/10/11 Speed

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