Schmidt Son 29 S hub dynamo wheel with XC 1025

The 28-inch front wheel featuring the Son 29 S straight-pull dynamo with the extra-robust, lightweight and stable Open Pro UST road/gravel rim.

Wheel building at TNC-Hamburg:

We hand-build these wheels exclusively for you. Thanks to our expertise gained from over 30 years of experience in wheel building, we extract the optimum in roundness, durability and stiffness from the materials. These wheels are, of course, tested multiple times; we also pre-load the spokes in both the radial and lateral directions. This eliminates the need for re-truing over a long period of time. We use DT Swiss spokes exclusively. These ensure outstanding durability of the wheels. For enduro use, we recommend brass nipples.

These wheelsets are made to order for you, so we cannot offer a right of withdrawal for them.

Included in delivery:

• Front wheel fully laced and hand-trued in our workshop with Son 29 S hubs, DT spokes, DT nipples as selected and Mavic XC 1025 Disc rim.
• Excludes rim tape and valve
• Weight from 1050g, depending on the version selected

If you would like other versions of the wheel, please ask us for a quote.

Schmidt SON 29 S hub dynamo Technical data:

• Electrical output: 6V / 3W in accordance with StVZO Approval: ~~~ K 179
• Permitted wheel sizes: 16–29 inches
• Efficiency: 65 per cent at 15 km/h Power consumption when idling: 0.5 watts at 15 km/h
• Magnetic rotor: Neodymium-iron-boron, 26-pole
• Connection: 4.8 mm flat plug, two-pin, potential-free
• Cabling: Coaxial cable, PVC-free, 3 mm
• On/off switch: via switch in headlight housing
• Axle: Hollow axle made of cold-hardened, stainless steel
• Bearing: Deep groove ball bearing 629 2RSH
• Seal: Gap seal, sealing washers and pressure equalisation system
• Hub sleeve: Aluminium 6082
• Axle: Hollow axle made of cold-hardened, stainless steel
• For 12x100 mm thru-axle mounting
• Bolt circle diameter: Disc side tangential 72 mm, radial 41 mm
• Recommended lamp: Schmidt SON Edelux

MAVIC XC 1025 MTB rims dimensions:

• ETRTO 622 x 25c, 29 inches
• tubeless ready
• 6106 Maxtal aluminium
• Suitable for disc brakes only
• black anodised
• Recommended tyre width: 1.3–2.7
• Rim dimensions: Inner: 25 mm, Outer: 24 mm, Height: 24 mm
• Required rim tape width: 28 mm
• Weight: 499 grams

Spoke length for 32-hole: 276 / 294 mm

If you would like other versions of the wheel, please ask us for a quote.

SON 29 S disc 6-hole

The new SON 29 S: slim, light, efficient. The straight-pull dynamo: thanks to its optimised design, it delivers 6V/3W even at low speeds and meets StVZO requirements for 29-inch wheels. Ideal for high-performance charging electronics. The brake disc side is laced in a cross pattern and the connection side in a radial pattern. The 24-hole version has 16 left and 8 right spokes, the 32-hole version has 16 left and 16 right spokes. The SON 29 S is fitted as standard with a coaxial socket for the SON coaxial plug. For the 1:2 model, we recommend building it with a rim manufactured to the correct specification to achieve an optimal spoke pattern. You can find suitable rims with a 1:2 drilling pattern here.

Mavic XC 1025 Disc Rim:

The high-end cross-country rim, featuring ISM 4D weight tuning, 25 mm internal width, hookless rim flange optimised for tubeless use, welded rim joint and reinforced rim holes, offering an excellent weight-to-stability ratio.

Super-sturdy welded rim joint; despite a 25 mm rim width, the welded rim is exceptionally light at 499 grams, thanks to ISM 4D weight tuning and Inter Spoke Milling, which removes material precisely where it is not needed without weakening the highly stressed spoke holes. This form of weight saving enables faster acceleration without compromising on durability. All this makes the XC 1025 our top recommendation for stable and lightweight cross-country wheelsets. Suitable for disc brakes only. Application: Cross-country gravel.

DT Swiss Competition spokes

The double cold-forged spoke made from rust-resistant 18/10 chrome-nickel steel with a tapered middle section for robust, lightweight wheelsets. We recommend these spokes for virtually all wheelsets. Extremely durable and sufficiently lightweight, DT Competition spokes enable wheel building of the highest standard. Thanks to the tapered mid-section, the spokes absorb movement in the wheel exceptionally well, without compromising on lateral stiffness or durability.

DT Swiss Aero Comp spokes:

Designed for stable, laterally stiff yet aerodynamic wheelsets, the DT Swiss Aero Comp spoke in the straight-pull version is first cold-forged in the middle section, making it lighter and stronger. In a further complex process, it is flat-forged to optimise aerodynamic properties whilst simultaneously increasing material strength. The DT Aero Comp guarantees a balanced combination of stiffness, aerodynamics and durability.

DT Swiss Aero Lite spokes:

The DT Swiss Aerolite spoke is flatter and lighter than any other; the DT Swiss Aerolite spoke features an aerodynamic flat profile and is extremely lightweight. Thanks to the 0.9 x 2.3 mm aerodynamic mid-section, this spoke can be fitted to all standard hubs. The Cold Forging Technology (CFT) developed by DT Swiss makes the reduced and forged DT Aerolite the lightest stainless steel spoke and gives it excellent mechanical properties. Particularly suitable for super-light and fast road or cross-country wheelsets. 64 DT Aerolite spokes weigh an incredible 278 g at a length of 264 mm. Weight per spoke at a length of 264 mm: 4.31 grams.

DT Swiss Revolite spokes:

The DT Revolite is the ideal choice for riders looking for a spoke that combines durability, low weight and aerodynamics. With a 2.3x1.3 mm cross-section in the middle section of the spokes, these offer excellent aerodynamics. Through several rounds of development, their innovative shape has been optimised to outperform all other DT Swiss MTB spokes in their weight class in terms of durability. This has been achieved through the unique blading process, which achieves additional densification of the material, and a patent-pending process that ensures a uniform transition from the tapered to the forged section of the spoke. Weighing just approx. 4.5 grams at a length of 264 mm per spoke, the Revolite is also exceptionally light.

DT Swiss spoke nipples

We offer the wheelsets with standard DT Swiss brass nipples and DT Swiss Pro Lock nipples. Want to increase the lifespan of a wheelset many times over? That’s only possible with DT Pro Lock! This nipple features an integrated thread-locking system, developed and manufactured by DT Swiss. The two-component adhesive in the nipple thread prevents the spoke-nipple connection from loosening under the influence of operational loads and the loading and unloading of the wheel whilst riding, thereby ensuring constant spoke tension.

Herstellerinformation: