Raleigh Chopper alloy tubing, rather than the originals' steel, to make the bicycle lighter. The wheels are again 20 inches for the back wheel and 16 for the front wheel. The MK3 remained in production until 2009. In which the model was replaced by the slightly changed mk4 model. Since then there have been many editions of the Chopper, with the current mk5 still in production to this day. 2019 will mark the 50th anniversary of the Raleigh Chopper. Raleigh Chopper The Raleigh Chopper is a children's bicycle, a wheelie bike, manufactured and marketed in the 1970s by the Raleigh Bicycle Company
Bicycle suspension Horst Leitner began working on the problem of chain torque and its effect on suspension in the mid-1970s with motorcycles. In 1985 Leitner built a prototype mountain bike incorporating what became known later as the "Horst link". The Horst Link is a type of four-bar suspension. Leitner formed a mountain bike and research company, AMP research, that began building full-suspension mountain bikes. In 1990, AMP introduced the Horst link as a feature of a "fully independent linkage" rear suspension for mountain bikes. The AMP B-3 and B-4 XC full-suspension bikes featured optional disc brakes and Horst link rear suspension very