Exhibition

10.10.6.2 DIMENSIONS: Height: 31.5” (800mm) maximum overall. • Passenger Platform: 31.5” by 11.8” (800mm by 300mm) minimum dimensions, measured (5.9” (150mm) above the platform. • Wheelbase: 65” (1651mm) maximum. • Minimum ground clearance is three inches, measured over the entire length and width of the outfit, race-ready, with driver, passenger, and fuel, and with the handlebars in the straight position. No device is permitted to reduce this clearance during the course of the race. 10.10.6.3 WHEELS & TIRES: The minimum diameter of the inflated tire must be 15.7” (400mm). Slick tires are permitted. Wheel rims should be 10” (255mm) minimum, 13” (330mm) in maximum diameter. Maximum tire width is 8” (203mm) for the front and 11” (254mm) for the chair and rear tire. 10.10.7 MODERN SIDECARS 10.10.7.1 US F1: Long wheelbase, 1000cc, per SRA rules. 10.10.7.2 US F2: Short wheelbase, 1000cc, per SRA rules. 10.10.7.3 TT1: Long wheelbase, 600cc, per FIM rules. 10.10.7.4 TT2: Short wheelbase, 600cc, per FIM rules.

10.11 EXHIBITION

Guidelines for non-competitive exhibition or “rolling display” rides are available from theAHRMANational office. Exhibition classes include, but are not limited to: a) CB160 b) Formula Lightning Extreme c) Big Wheel Sidecar

SOUND OF SINGLES / BATTLE OF THE TWINS / SOUND OF THUNDER / FORMULA LIGHTNING

MISSION STATEMENT: AHRMA’s mission is to showcase single-, twin, three-cylinder and electric motorcycles which historically have been underrepresented in modern road racing. The Battle of Twins concept was born in the late 1980s as modern Superbike racing became increasingly dominated by inline four-cylinder machines. BoT racing kept alive the thunderous roar of twincylinder machines from British, European, and American manufacturers. Sound of Singles racing features modern interpretations of the classic single-cylinder racebike, encompassing everything from production bikes to one-off custom-built machines.