The Honda CRF70 is an entry-level off-road motorcycle/dirt-bike that was first introduced in 2004. With it low price and small engine displacement, it is aimed at those who are starting a hobby in off-road or motor-cross, and is ideal as a learner's bike. The motorcycle's small size is geared towards the youth or teenage rider.
Dimensions and Exterior
The Honda CRF70 is 128 pounds in dry weight which does not include a full fuel capacity of 1.5 gallons. It has a wheelbase of 42 inches and a ground clearance of 7 inches. At its lowest setting, it has a seat height of 26.1 inches. The steel frame is fitted with a plastic exterior that comes equipped with an engine case guard, exhaust guard, fork guards, rubber hand grips and a front and rear fender, both of which are made out of plastic.
Engine and Transmission
The Honda CRF70 has an air-cooled, single-cylinder, two-valve, four-stroke engine in a SOHC valve configuration, with a bore and stroke of 1.9 and 1.6 inches respectively. Coupled with a compression ratio of 9:1, it produces a displacement of 72 cc and an engine displacement-to-weight ratio of 0.56 cc. The engine is fueled by a 13 mm carburetor that is activated by means of a kick-start. The engine is controlled by a three-speed transmission as well as a chain-operated final drive.
The chassis of the Honda CRF70 has a 27-degree fork angle and is fitted with telescopic fork suspension in the front and single-shock suspension in the rear. The suspension travel in the front and rear is 3.2 and 3.5 inches respectively. The front fork diameter is 1.1 inches. The CRF70 uses 70/70-19 front tires and 90/90-16 rear tires, which together produce a trail of 2.4 inches. Drum brakes are fitted in both the front and rear.
Specs of the Honda CRF 100
The CRF 100 F 2006 is part of Honda's popular off-road range, with features to match, such as low seat height and...
How to Change Oil in a Honda Civic
Performing regular oil changes on a Honda Civic is as important as on any other car. All of the petroleum-based products in...
How to Replace the Rings on a Honda CRF70
The Honda CRF70 is a small mini bike that provides young and small statured racers real Honda performance in a size appropriate...
How to Change Oil in a Honda 350 ATV
A Honda 350 ATV can be one of many model's. You change the oil in these models the same way. Underneath the...
How to Operate a Honda 70 Motorcycle
Honda has played a major hand in introducing people to the sport of motorcycle riding. Today, Honda offers two models that are...
How do I Compare a Honda CRF 70 and XR 70?
The Honda XR and CRF series of motorbikes are both single cylinder four stroke off-road motorcycles primarily used for stunt riding. These...
How to Take Apart the Carburetor on a Honda CRF 100
Honda used the 22 mm Keihin PE carburetor on all of their CRF 100F models from 2004 through 2014. Keihin recommends that...
Oil Specifications for a 2003 Honda CRF 150F
The Honda CRF 150F is a lightweight motorcycle designed for off-road use. Its small, fast-running, four-stroke engine -- the recommended idle speed...