
1) ET bike 2) Bicycle brand 3) Bicycle motocross 4) Bike race with hills 5) Brand of racing bikes 6) Trick bike 7) Wee racing bicycle
Found on
https://www.crosswordclues.com/clue/bmx

bicycle moto-cross, racing on short dirt tracks.
Found on
http://bikecult.com/bikecultbook/glossary_english.html

BMX or Bicycle motocross is a cycle sport performed on BMX bikes, either in competitive BMX racing or freestyle BMX, or else in general on- or off-road recreation. BMX began when young cyclists appropriated motocross tracks for fun, racing and stunts, eventually evolving specialized BMX bikes and competitions. == History == BMX began in the early ...
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http://en.wikipedia.org/wiki/BMX
[gene] Cytoplasmic tyrosine-protein kinase BMX is an enzyme that in humans is encoded by the BMX gene. == Function == Tyrosine kinases are either receptor molecules, which contain transmembrane and extracellular domains, or nonreceptor proteins, which are located intracellularly. One family of nonreceptor TKs includes the genes TEC, TXK, IT...
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http://en.wikipedia.org/wiki/BMX_(gene)

(from the article `bicycle`) BMX (bicycle motocross) bikes appeared in the early 1970s as an offshoot of motocross. They were designed for racing on dirt tracks replete with ...
Found on
http://www.britannica.com/eb/a-z/b/83

Bicycle Moto Cross. A popular type of racing, trick riding and jumping usually done on 20-inch-wheel one-speed bikes.
Found on
https://www.encyclo.co.uk/local/22515

Bicycle Moto Cross; stunt racing on a closed dirt track over obstacles.
Found on
https://www.encyclo.co.uk/local/22517

bicycle motocross.
Found on
https://www.infoplease.com/dictionary/bmx
No exact match found.