Bicycle Archive · Specification report

2003 Hoffman Bikes Star Rhythm

Velopedia Archive ID 38839

Overview

Model year	2003
Brand	Hoffman Bikes
Model	Star Rhythm
Bicycle type	Freestyle/jumping
Archive ID	38839
Original MSRP	$399.00
Colors	Black, Gloss White, Silver
Sizes	Pro
Weight	36 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	3-piece chromoly 175mm, 44 teeth
Bottom bracket	Three piece, sealed
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	KMC 410, 1/2 x 1/8"
Pedals	Wellgo LU-313

Brakes

Brakes	DiaTech 996 U-Brake rear brakes, Dia-Compe MX99 rear 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	Front: Keyin alloy 3/8", Rear: Keyin alloy 14mm
Rims	Jalco, 36-hole
Spokes	Stainless steel, 14ga. (2.0mm) straight gauge
Spoke nipples	Aluminum nipples
Front tire	20 x 1.95" Primo Dirt Monster
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	533.4 mm
Head-tube angle	74°
Seat-tube angle	70°
Chainstay / rear center	361.9 mm
Wheelbase	914.4 mm
Fork offset / rake	35.6 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 24, 2026.