Rim: 42 mm Clincher / Tubeless Ready Made in Germany!
Width: 29 mm / Internal Width: 22 mm
Hub: DT Swiss 240 Centerlock
Compatibility: front 100 mm / rear 142 mm, through axle 12 mm
Spokes: CX Ray 2.0
Total weight: 1450 g (DT Swiss 240 CL hubs)
Rim weight only: approx. 450 g (per rim)

Delivery lead time: Place any wheelset order today and we will assemble and ship it within 2 days! 

Optimized V-Shape

Optimum force transmission from the spokes via the nipples into the rim. Less material is needed to stabilize the flanks – the shape’s design for force flow allows for optimized fiber placement and high stability with low weight. The specially optimized shape reduces susceptibility to crosswinds and gusts, making the rim the first choice for a smooth ride in diffuse conditions.

Internal width

22 mm – we’ve squeezed the maximum jaw width out of the shape without removing the safety aspect of a hook. With 22 mm, the rim is suitable as a modern road rim for 28mm tires and larger.

Intended use

Road, light gravel – the SL42 rim feels at home on any terrain, whether on the road or on a bike packing trip. Extensive tests have confirmed this. The SL42 is optimized for impact resistance, and the wheel can easily handle even rough impacts.

Rim construction

The rim is made of high-quality Japanese fibers that are laid down in near-net-shape in the preforming process in accordance with the load. At every point on the rim, the fibers have the same, optimal angle to the center of the wheel – this uniqueness allows us to reduce weight and achieve thin wall thicknesses without loss of stability and impact resistance

The impact-reducing fleece on the horn is made from 100% recycled fibers.

Hubs of our trust

DT Swiss – we have been relying on the quality and longevity of the DT Swiss 240 hub for our SL series for 3 years now. Coupled with the low weight, the DT Swiss 240 hub is the perfect match for all important parameters for Schmolke standards. The extremely reliable freewheel system ensures direct power transmission even under the highest loads. Smooth-running bearings provide a clear advantage with their extremely low rolling resistance.


We use steel spokes from the Belgian manufacturer SAPIM on all of our wheels. With the CX-Ray knife spoke we installed, Sapim has succeeded in developing an exceptional spoke. In addition to its low weight, it has exceptional load capacity and flexibility. This also results in the large area of ​​application. Regardless of whether it is a racing bike, gravel or MTB wheelset, they all benefit from these positive properties. In addition, the flattened middle section ensures excellent aerodynamics. The high quality of the materials enables the construction of stable wheels and guarantees a long service life.

Which freewheel system do I need?

Before you make the purchase, you should be clear about which gears you have installed on your bike. This determines which freehub body you should order.

Shimano – if you have installed a Shimano group set, please select Shimano (HG-11) as the freehub body. Even with the new 12-speed gears, the cassette can still be installed on the conventional HG-11 freehub body without any problems.

SRAM – if your bike has a SRAM group with an 11-speed cassette, you should choose the Shimano HG-11 freewheel body to be able to install your cassette. The newer 12-speed AXS gears from SRAM require the XDR freehub body for assembly, in which the cassette is screwed onto the body in one piece.

Campagnolo – if you have installed a Campagnolo 12-speed gears, we ask you to select the “Campagnolo” freehub body when ordering. For example, if you need the N3W freehub body for your “EKAR” gravel group, please let us know in the order comments.

Wheel building

The SL42 wheels are painstakingly laced and centered by our wheel builder. This is done in our workshop in Konstanz on beautiful Lake Constance. Great care is taken to ensure that each wheel is finished with optimal concentricity and the correct spoke tension. In order to optimize the fit of the spokes, our SL42 wheelsets are machine pressed several times with a precisely defined force. This means that you as a customer do not have to have the wheels re-centered after a short time, but can enjoy the full driving pleasure of the wheels straight away and without any restrictions.

Assembly instructions

Do you have special requests or would you like to have different components fitted to your bike? Let us know how you envision your custom bike. We will work with you to build your dream bike: to the contact form.

SL 42 Clincher / TLR Disc



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