Got a problem with BMX? Mongoose has the Solution - the most sophisticated 20-inch ever built for off-road use. The 1991 Mongoose Solution Pro's 100% chromoly frameset employs a double-ovalized 1-1/2-inch down tube for increased bottom bracket stiffness and head tube strength. Tapered 3/4-inch rear stays eliminate power-robbing flex. 1-1/8-inch tapered forks with zero rake and minimal axle offset deliver instant turning response. Its oversized 26mm chromoly seatpost is unconventional and nearly indestructible. The Solution Pro rolls light and true on all-new Araya RB-17 32-spoke chromed alloy racing rims and polished, small-flange sealed bearing hubs. Traction is delivered by Mongoose 20x1.80-inch black skinwall knobbies - brand new for '91. With all these features plus our new Pro Class handlebars, forged alloy pedals, and padded Velo saddle, the 1991 Solution Pro defines the state of the art in racing performance and technology.
Headset Size
1"
Seatpost Size
26.0mm
Top Tube Size
unknown
Original Colours
HFAY000000
Made in Taiwan.
Third digit in the serial indicates year of production. A = 1991. The fourth digit in the example above indicates production Month. Y = A to D - Jan to April. For all serial number sequence explanations, see the mid-school serial guide page.
Mid School Serial Guide
Bikes made in Taiwan usually had an 6-9 month production and shipping timeline before they were sold in bike shops around the world. In May of any year, factories would usually switch production to making models for the following year.