The Handsling Off-set Tubeless wheels are among the most advanced wheels.
As part of our development process, our wheelbuilder, Ian, suggested we adopt a slight off-set for the spoke holes to allow him to build a more balanced wheel, better able to deal with the forces associated with disc brakes and wide cassettes. The result is the Handsling off-set tubeless wheels.
The rim has a semi-hookless design, as it uses a new bead lock system, designed to hold onto a tyre better and prevent any air leakage. There is a noticeable inward curve to the rim edge designed to provide better support to tyre walls at higher pressures.
The rims are in excess of 30mm wide at their widest point and have a toroidal shape to aid aerodynamics. The spoke holes are off-set by 2.5mm from centre to improve strength and durability. The rims are semi-hookless and have an internal width of 23mm.
Available in a variety of depths, they are the most advanced tubeless solution for road racing and sportive riders looking to enjoy the many benefits of tubeless tyres and light, aerodynamic rims.They will also work well for cyclocross and gravel riders looking for a very strong wheel..
The wide rim profile is well behaved in cross winds and is the ideal profile for aerodynamic performance no matter the yaw angle (wind direction). The rim shape will also work particularly well with the latest truncated aero frame tube profiles.
The rims are at their widest (over 30mm) quite close to the outside edge, before tapering back to 28mm at the rim edge to form a more aerodynamic transition into the tyre.
They are optimised for 28mm tyres but will work with 25mm tyres and with wider tyres from 32mm cross tyres to 45mm gravel tyres.
Recommended maximum tyre pressure is 90psi.
Off-set wheel rims are available in 40mm, 45mm, 50mm and 55mm depths. As standard we use a slightly shallower front and a deeper (+5mm) rear with our Handsling hubs:
For those interested in aesthetics, the extra 5mm at the rear is barely noticeable front to rear, but the handling and performance gains certainly are.
It has two benefits:
1. Advantages to handling on windy days, with more control of the front wheel.
2. Aerodynamic benefits to the rear, where the slightly deeper rim can work in conjunction with aero tube shapes.
Rim depth is always a trade off between aerodynamics and comfort. (Contrary to what you may think, weight is not really a huge factor as you expend far more energy pushing wheels through the air than accelerating them up to speed; even in the mountains, total mass of rider and bike is more relevant than wheel weight specifically.) Rim depth depends upon riding style and conditions. A shallow rim will afford more comfort and handle much better on windy days. A deeper rim will be more aerodynamic but will give a harsher ride and be tougher to keep under control in windy conditions.
The rims are very strong and the off-set spokes make tough wheels that can handle a lot of abuse. The semi-hookless rims can be made lighter than clincher rims, using less material thanks the lack of a pronounced hook. Handsling worked hard with our factory to make the rims as lightweight as possible without compromising strength.
Rim weights are as follows:
40mm - 400g (+/- 10g)
45mm - 435g
50mm - 455g
55mm - 485g
Wheelset weights are as follows (all weights with Handsling hubs):
40mm/45mm - 1432g
45mm/50mm - 1495g
50mm/55mm - 1532g
Rider weight limit is 120kgs.
Finished in matt UD carbon with gloss, embossed HANDSLING logos they are of striking appearance and make any bike look amazing.