shipping country:

Wheelset 29" XC | Ursus Straightpull 6-Hole Hubs | Duke Aluminum Rims

Item number:
Product weight: 1433 g
Brands: r2-bike

from 697,50 €
MSRP: 824,68 €
You save 15,42%, that is 127,18 €

including 19% VAT. , free shipping (DE) / shipping time info (Sperrgut)

handmade - in about 4 - 6 weeks
Configure now

Ursus Front Hub Straightpull 6-Hole
Ursus Front Hub Straightpull 6-Hole
  • Brake disc mount: 6-hole
    Spoke type: Straightpull (straight)
    Bearing: 2x industrial deep groove ball bearings
    Color: Black
    Weight: 139g

    With the 110 millimeter wide BOOST hub, stiffer wheels with a more even spoke angle on both sides can be built thanks to a wider flange spacing.

Ursus Rear Hub Straightpull 6-Hole
Ursus Rear Hub Straightpull 6-Hole
  • Brake disc mount: 6-hole
    Spoke type: Straightpull (straight)
    Bearing: 4x industrial ball bearings
    Freewheel type: 3 pawls / 30 detents per revolution
    Freewheel compatibility: 12-speed Shimano Micro Spline 
    Color: Black
    Weight: 266g

    With the 148 millimeter wide BOOST hub, stiffer wheels with a more even spoke angle on both sides can be built thanks to a wider flange spacing.

Duke Rims Aluminum Cross Country
Duke Rims Aluminum Cross Country
  • Application: Cross Country XC
    ETRTO: front 622x29.5 - rear 622x27.5
    Inner width: front 29.5 mm - rear 27.5 mm
    External width: n / a
    Rim height: front 18 mm - rear 18 mm
    Offset: front 2.3 mm - rear 2.3 mm
    Recommended tire width: front up to 2.6 "- rear 2.5"
    maximum tire pressure: 2.5 bar
    maximum system weight: 110 kg (driver, bike, clothing and possibly luggage)
    Color / finish: black / matt
    Weight: VR 434g - HR 420g

  • Application: Road, Gravel, Cross Country, Trail
    Weight incl. nipple: approx. 5.45g (1 piece)

    The wing spoke made of cold drawn Sweden steel has an elliptical shape which takes advantage of the flat, light and aerodynamically more favorable but weak aero spoke and the stronger but less aerodynamic and heavy classic round spoke. This gives it the diameter necessary for torque transmission and at the same time favorable and superior aerodynamic properties with low weight!

Colour Spoke Nipples
Colour Spoke Nipples
  • The nipples are made of brass in order to achieve the best possible and long-lasting result in terms of color. The robust material is insensitive to corrosion and does not stick to the thread of your spokes, so that re-centering is still possible without any problems even after years of use. In addition, they are neither attacked nor damaged by any sealing milk that may have got into the rim well.

    Weight per piece: 1.0g

Rim Tape | Tubeless Kit
Rim Tape | Tubeless Kit
Your configuration
Product details


Wheelset 29" XC | Ursus Straightpull 6-hole hubs | Duke aluminum rims

intended use : Cross Country XC

Stable, functional and inexpensive - this is how this wheelset can best be described. The combination of Duke aluminum rims and the robust Ursus hubs should therefore always be on the shortlist. The balanced selection of components guarantees you high reliability and a long service life.

Ursus is an Italian bicycle company based in Rosà, a small town in northern Italy. With almost 50 years of experience in development and manufacturing, they have built a comprehensive portfolio of bicycle components. All components are developed in-house, manufactured and tested on modern CNC machines, ensuring consistently high quality.
The Ursus XD51 is the right choice for anyone looking for a comparatively light and stiff hub. This is achieved by using aluminum 7075 and a 15 mm axle . By choosing large bearings with a good LLU/LLB seal and additional splash protection in front of the bearings, a long service life with minimal maintenance is achieved.
The special shape of the 6-hole mount ensures optimal distribution of the braking forces and thus leads to a more sensitive braking feeling.

The rims from Duke from France stand for low weight and excellent workmanship. The hookless design is ideal for using tubeless systems. The reinforced bead means that any punctures can be better handled without causing damage. The rims, which are quite flat and wide, reliably support the tire in every situation.
The asymmetrical shape allows for more even spoke tension, which further increases the rigidity of the entire wheel.

Wheel construction at R2-Bike

Our wheels are assembled entirely by hand by our wheel builders. During the entire construction, it is important to ensure that not only the concentricity is correct, but also that the spoke tension is as even as possible. This special care allows us to offer a lifetime guarantee against broken spokes, as long as they are not caused by violence.

The following services are also already included:

You get a universal wheel bag for all common sizes.
You will receive a replacement spoke with a nipple in all the required spoke lengths so that you can repair the wheel at short notice after an accident.
You will receive a free initial inspection of the wheel, where the resulting work is completely free of charge. Only shipping costs are charged.
You get a crash replacement promise: If your wheel is damaged due to force majeure, we will rebuild it once. We offer a 100% discount on all labor costs and only charge for the material.

Technical data:

intended use : Cross Country XC
Wheel size: 29" (ETRTO: 622 x see detailed description)
Rim type: Clincher (clincher and folding tires)
Brake type: disc brake
Brake disc mount: 6-hole


1433g (lightest variant: Boost + Boost SRAM XD, Duke Lucky Star Ultra 23, Sapim CX-Ray)
1651g (heaviest variant: Boost + Boost Shimano MS, Duke Lucky Star HD 6TERS 30/28, Sapim Race)

A notice:
Due to manufacturing fluctuations in all components, deviations in weight are possible. The information is usually determined without rim tape, valves and decals/rim stickers.

The delivery time stated refers to the usual time it takes to build the wheelset and does not reflect the availability of the individual parts.

If you would like a special lacing on the rear wheel, e.g. for the Cannondale Ai rear triangle or for EVO6, please contact our service team.

Scope of delivery:

1x complete wheelset, fully assembled (hubs, rims, spokes and nipples)
1x balance bike bag
4x replacement spokes including nipples
1x construction certificate
2x hologram stickers