The 1999 Diamond Back Joker BMX features a freestyle frame built from oversized hi-ten tubing with double-thick dropouts, paired with a hi-ten fork using a 1-1/8” threadless steerer, 1-1/4” blades, and reinforced dropouts. It comes fitted with steel handlebars offering an 8” rise in chrome, held by an alloy four-bolt A-head stem. Braking combines an alloy U-brake at the rear with a Dia-Compe Bull Dog front brake, both operated by Dia-Compe alloy levers. The drivetrain uses a forged 175mm crank in chrome with a 44-tooth chainwheel, matched to resin platform pedals. The wheelset consists of alloy 20x1.75” 48-hole rims with alloy hubs, wrapped in freestyle 20x1.95” tyres. Comfort comes via a freestyle seat with layback post, while extras include an SST 1-1/8” rotor and rear oversized pegs.
Frame & Fork
1pc Cranks
Alloy Rims
To use the BMX SerialFinder start typing the whole serial into the search bar at the top of the page, or use the Advanced Search page. Based on your entry, a filtered list of possible bikes that match your serial year and month will appear.
Diamond Back BMX serial numbers.
The first three characters ACS is the factory code.
After the above factory code, the next character is year of production. 8 = 1998, 9 = 1999. Production would have most likely started around May 1998 through to April 1999.
After the year is month of production. A = January, B = Febuary, C = March, D = April, E = May, F = June, G = July, H= August, I = September, J = October, K = November, L = December
Example: ACS8F00000
Made in Taiwan.
As a general rule, bikes made in Taiwan had around a 8 month production lead timeline before they were delivered and sold in bike shops around the world. Generally around May of each year, factories would switch production to making models for the following year.
