The 1999 Diamond Back Reactor Team BMX features a lightweight 6061 alloy Franko-design frame with CNC dropouts and integrated chain tension adjusters, paired with a full chromoly fork using a 1-1/8” threadless steerer and 1-1/4” blades. It comes fitted with 4-piece chromoly handlebars offering an 8” rise, held by a forged alloy Ahead-style stem. Braking is handled by an Avid alloy linear-pull brake with matching lever, while the drivetrain steps up to a Profile chromoly three-piece 180mm crank with precision sealed-bearing bottom bracket and a Profile Whippit 44-tooth chainwheel, matched to alloy clipless platform pedals. The wheelset consists of Mavic XY double-wall 36-hole rims, DB Slasher alloy hubs with flip-flop rear, and stainless spokes, wrapped in Ritchey Speed Max tyres (20x2.125” front, 20x1.95” rear). Comfort comes via a padded seat with chromoly rails and alloy seatpost.
Alloy Franko Frame
Profile 3pc CR-MO Cranks
Mavic XY double wall 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 ACK 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: ACK8H00000
Made in Taiwan.
As a general rule, bikes made in Taiwan had around a 8 - 9 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.
