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Tuesday 15 June 2021


Smooth Operators

It is already 20 years now since former German Harley dealer Werner Müller unveiled his first patented clutch assist device - the Power Clutch - and in that time the company he founded has sold over 100,000 of them, worldwide.

Based near Ingolstadt in Bavaria, Germany, these days the business is operated by Werner's son Fabian Müller, a well-known custom bike builder as well as parts and accessory designer. The original 'Bowden' cable Power Clutch for mechanical clutch operation is still available, and the latest iteration is the Hydro Clutch - for Twin Cams and M-8 models with hydraulic clutches. 
Hydro clutch for Twin Cams and M-8 models with hydraulic clutches

Müller says that the maintenance-free Hydro Clutch is producing up to a 35% reduction in lever effort of Twin Cams with the Harley hydraulic clutch and up to a staggering 45% reduction in clutch lever effort on M-8 models - Softails and Touring.
Now that Harley has dropped its hydraulic clutch (just too many problems with its design), both designs - Power Clutch and Hydro Clutch - are equally important opportunities for dealers and help turn every rider into a "Smooth Operator"!

"up to 45% less lever effort"

The Müller design produces "a clutch that still works - the plates separate perfectly. With some of the other designs we have tested, we have been seeing a loss of stroke when the plates don't operate smoothly, but with our designs, clutch operation is precise." The invisible/hidden install is described as simple and intuitive. 

Power clutch for Bowden cable Harley clutches - including 2021 models

By improving the precision with which riders can control clutch operation, the Power Clutch and Hydro Clutch can improve the durability and service life of the clutch and the gears in the transmission. The improved sensitivity and feel therefore contribute to better handling and safety - especially in heavy traffic and urban/suburban riding conditions.

Lowering kit for M-8 with stepless height adjustment

Another Müller specialty is lowering kits. Werner Müller's first design was introduced some 30 years ago for EVO models and is still a strong seller. At the time it was said to have been the first ever height-adjustable lowering device for any Harley application, and was likely to have been the first adjustable lowering device for any motorcycle model.
Following that, the version he designed for Twin Cams went a stage further and allowed the height to still be adjusted even once installed - which really brought motorcycle height adjustment into its ergonomic sweet spot.

Lowering kit for Twin Cam, height can be adjusted even after installation
Height adjustable lowering kit for EVO

Marking another advance, for M-8 models, the Müller design is said to be the only lowering kit on the market with stepless height adjustment.
Müller lowering kits are 100% made in Germany and, as with its easy clutch devices, are backed by a lifetime warranty and designed to be durable and maintenance-free.