Designed for the performance minded rider, the 1990 Mongoose Expert Comp has a lot of the features of bikes costing much more. The frame is made of large diameter Chromoly tubing and features the unique Mongoose wishbone style. It's equipped with top quality components like: Pro Class alloy rims, an alloy spyder, 43T alloy chainring, a Mongoose racing seat, Mongoose competition brakes and a complete safety pad set.
Headset Size
1"
Seatpost Size
26.0mm
Top Tube Size
482mm
Original Colours
LY89XX00000 LY90YY00000
Made in Taiwan.
The first two numbers in the serial indicates year of production. 89 = 1989, 90 = 1990. The third and fourth numbers (as shown in the examples above) indicate production Month. XX = 05 to 12 May to Dec. YY = 01 to 04 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.
| HT˚ | ST˚ | ST | CS | BB | WB | FR |
| 71˚ | 72˚ | 228 | 365 | 33 | 930 | 34 |
HT˚ = Head Tube Angle, ST˚ = Seat Tube Angle, ST = Seat Tube Length to top, CS = Chain Stay Length, BB = Bottom Bracket Height, WB = Wheel Base Length, FR = Fork Rake. All dimensions center-to-center unless otherwise noted. Dimensions provided in millimeters.
