Bicycle Archive · Specification report

2003 Hoffman Bikes Instrument

Velopedia Archive ID 38841

Overview

Model year	2003
Brand	Hoffman Bikes
Model	Instrument
Bicycle type	Freestyle/jumping
Archive ID	38841
Original MSRP	$429.00
Colors	Black, Dark Bronze, Royale Blue
Sizes	Pro
Weight	36.5 lb

Frameset

Frame construction	TIG-welded
Frame material	4130 chromoly
Fork	Hoffman Bikes Superfork
Fork material	4130 chromoly
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	1-piece 175mm, 44 teeth
Bottom bracket	Three piece, sealed
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	KMC, 1/2 x 1/8"
Pedals	Wellgo LU-313

Brakes

Brakes	DiaTech 996 U-brake brakes, Dia-Compe MX99 levers

Cockpit & contact points

Headset	1 1/8" threadless Dia-Tech D-Cup
Handlebar	Hoffman Jumping Bars
Handlebar extensions	N/A
Stem	Hoffman Bikes Super Stem
Saddle	Hoffman Padded Embossed Skull
Seatpost	Chromoly micro-adjust, 25.4mm diameter

Wheels & tires

Hubs	Keyin alloy, sealed
Rims	Jalco, 48-hole
Spokes	Stainless steel, 14ga. (2.0mm) straight gauge
Spoke nipples	N/A
Front tire	20 x 1.95" Hoffman Skid Mark
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	508 mm
Head-tube angle	74°
Seat-tube angle	70°
Chainstay / rear center	361.9 mm
Wheelbase	939.8 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 23, 2026.