A Derny is a motorized bicycle for motor-paced cycling events such as during six-day and Keirin racing and motor-paced road races. Some riders train behind a derny on the road.

Aug 11, 2024 · But what is a derny? A derny is an electric motorcycle used to set the pace in racing events like the six-lap keirin.

Dec 6, 2015 · The Derny was the first motorised bike made specifically for pacing cyclists. The original Dernys were powered by 98cc two-stroke petrol engines, and on average their riders pedalled a massive...

A derny race is a race in which the cyclists are paced by someone riding a derny. A Derny is a motorised bicycle designed and built for motor-paced cycling events (e.g.: motor-paced races in six-day and Keirin racing) or motor-paced road races.

Derny est le nom de marque d'un ancien constructeur français de motos légères qui s'appelait Roger Derny. L'entreprise Roger Derny et Fils a été créée à Vichy en 1930 et fermée en 1958.

The 98cc Zurcher engine is 1920s style. It is distinctly ‘top-heavy’ with large wheels and an over-sized bicycle frame. The Derny was a total ‘dinosaur’ among motorcycles and mopeds …and the market now demanded the latest sleek motorcycle designs, easy to mount, start and operate.

DERNY meaning: 1. a bicycle with a motor, used to set the pace (= speed) in some bicycle racing events such as the…. Learn more.

The derny race sits alongside madison, elimination and points races over a three-day weekend of track racing that culminates in the 16-team battle to crown the overall London 3 Day Champion, it's...

Oct 20, 2024 · A derny bike is a unique type of cycle used primarily in track cycling. It is designed specifically to act as a pacer during races, helping riders achieve higher speeds and improve their performance.

The Derny is very famous in France. Its design has hardly changed from that of the earliest motorcycles – essentially a bicycle with an engine attached. It’s front-mounted petrol tank is particularly distinctive. The solo Derny illustrated below is the machine used for cycle pacing, and its design did not change throughout its production.