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'Rollout' is the distance travelled by a vehicle before the timing lights on a drag strip are triggered. … can affect the final run time by up to 0.3 of a second. … important to discount this first foot of movement from the final run time, to ensure that the run time captured by the GPS data logger is as close as possible to the official ...
For bicycles with 700c wheels, some cyclists quote gear inches based on a nominal wheel diameter of 27 inches, corresponding to the old British tire size of 27 x 1 + 1 ⁄ 4" (ETRTO 630). Strictly speaking, the rolling diameter of a 700c wheel may be significantly higher or lower than 27", depending on the tire size, e.g. nearly 27.5" for a ...
The standard TH350 is still very popular in drag racing. THM250 ... Gear ratios: THM350, 250, 250C Gear Ratio 1: ... 1982–2014 Chevrolet & GMC full-size vans ...
The first drag racing slick was developed by M&H Tires (Marvin & Harry Tires) in the early 1950s. It was the only company in the world that produced and sold original drag racing tyres. Drag racing slicks vary in size, from slicks used on motorcycles to very wide ones used on "top fuel" dragsters.
Prior to 1964, tires were all made to a 90% aspect ratio. Tire size was specified as the tire width in inches and the diameter in inches – for example, 6.50-15. [24] From 1965 to the early 1970s, tires were made to an 80% aspect ratio. Tire size was again specified by width in inches and diameter in inches.
Average full-size passenger cars have a drag area of roughly 8 sq ft (0.74 m 2). Reported drag areas range from the 1999 Honda Insight at 5.1 sq ft (0.47 m 2) to the 2003 Hummer H2 at 26.5 sq ft (2.46 m 2). The drag area of a bicycle (and rider) is also in the range of 6.5–7.5 sq ft (0.60–0.70 m 2). [5]