Bicycle Archive · Specification report

1997 Ross Diamond Trimatic w/fenders

Velopedia Archive ID 66064

Overview

Model year	1997
Brand	Ross
Model	Diamond Trimatic w/fenders
Bicycle type	City/commuter
Archive ID	66064
Original MSRP	$259.95
Colors	Teal
Sizes	19", 21", womens 16", womens 19"

Frameset

Frame construction	TIG-welded
Frame material	Hi-tensile steel
Fork	Ross
Fork material	Hi-tensile steel, unicrown crown
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	Shimano 3-speed
Front derailleur	N/A
Rear derailleur	N/A
Crankset	Dotek aluminum, 44 teeth
Bottom bracket	YST BB 621, 122.5 mm spindle
BB shell width	68mm English
Rear cogs	3-speed internal, 18 teeth
Chain	KMC 410, 1/2 x 1/8"
Pedals	Resin

Brakes

Brakes	Coaster brake/side-pull front brakes, Tourist aluminum levers

Cockpit & contact points

Headset	1" YST 665
Handlebar	Cruiser Bend
Handlebar extensions	N/A
Stem	Steel
Saddle	Selle Master Comfort w/springs
Seatpost	Pillar, steel, 25.4 mm diameter

Wheels & tires

Hubs	Front: steel, nutted, Rear: Shimano 3-speed coaster brake
Rims	Rigida AS-26, 36-hole
Spokes	Richman stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	26 x 1.50" Cheng Shin
Wheel size	26" wheels

Geometry · Legacy reference

Top tube	569 mm
Head-tube angle	71°
Seat-tube angle	67°
Chainstay / rear center	445 mm
Wheelbase	1072 mm
Fork offset / rake	45 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 22, 2026.