1999 Dyno XR. Dyno trail frame, full CrMo tubing, heavy-duty gussets and 6mm dropouts. Full CrMo threadless Dyno fork with 1-1/4 inch legs, 6mm dropouts and GT Piston stem. GT CNC'ed chainwheel. GT aluminum platform pedals. GT Mohawk sealed mechanism hubs. Powerlite Retro-Tread tires. Dyno full CrMe expert handlebar with 7/8-inch crossbar. Dyno Lip grips. GT double-bolt CrMo micro adjust seatpost. GT Padded freestyle saddle with bashguards.
Frame & Fork
GT CR-MO 1pc Cranks
Weinmann 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.
Dyno BMX serial numbers.
The first two characters SY 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: SY8K00000
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.
