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Junior Dragsters. The Junior Dragster or Jr Dragster is a scaled-down version of the top fuel dragster. The cars were developed in New Zealand in 1988, with classes developed by the New Zealand Hot Rod Association. [1] The National Hot Rod Association in the USA began sanctioning the class in 1991, with the JDRL (Junior Drag Racing League). [2]
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 ...
5th gear 1550-2040 g City Shimano Nexus Inter-7: 1995 7 244% 1465-1860 g City Shimano Nexus Inter-5E 2019 5 263% 60 Nm 1st gear 1650 g e-bike Shimano Nexus 4 Speed 4 184% 1st gear City Shimano Nexus Inter-3: 3 187% 2nd gear 1220 g City SRAM Spectro E12 (Elan) 1995 1999 12 339% 3500-4000 g City SRAM i-Motion 9: 2005 2012 9 340% 2000g (w/o brake)-
Crawl ratio is a term used in the automotive world to describe the highest gear ratio that a vehicle is capable of. Note that gear ratio, also known as speed ratio, of a gear train is defined as the ratio of the angular velocity of the input gear to the angular velocity of the output gear, and thus a higher gear ratio implies a larger speed reduction, i.e. the input speed is reduced more at ...
These cars race at 1/8 mile or 1/16 mile. NHRA new class for Juniors is JR COMP running 6.90s at a top speed of 110 miles per hour (180 km/h) (1/8 mile or 1/16 mile). A complete listing of all classes can be found on the respective NHRA and IHRA official websites. Dragster engine with dual-plug heads, dual ignition magnetos, and intake snorkel
Her original Enders Racing Junior Dragster car is on display at the Wally Parks NHRA Motorsports Museum. In 1993, Enders won the Division 4 Jr. Dragster championship in the 8 to 9 year old class, and in 1995 she was named Junior Dragster Driver of the Year. In her eight years of junior dragster competition, she had 37 career wins.
A dragster that is not certified for Top Alcohol Dragster is faster than 5.99 seconds required for Top Alcohol Dragster certification. A full bodied car that is certified for 7.50 seconds goes faster than 7.49 seconds. A stock sedan with just a standard three-point harness goes faster than 11.49 seconds (five point harness required at that speed).
One standard option for the Brompton folding bicycle is to use a 3-speed hub gear (roughly a 30% difference between gear ratios) in combination with a 2-speed derailleur gear (roughly a 15% difference) to give 6 distinct gear ratios; this is an example of half-step gearing. Some Brompton suppliers offer a 2-speed chainring 'Mountain Drive' as ...