Bicycle Archive · Specification report

2007 Sun Bicycles EZ-Tadpole SX

Velopedia Archive ID 94833

Overview

Model year	2007
Brand	Sun Bicycles
Model	EZ-Tadpole SX
Bicycle type	Recumbent (tricycle)
Archive ID	94833
Colors	Red/Black
Sizes	36-46" X-seam
Weight	49 lb

Frameset

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

Drivetrain

Component group	Recumbent Mix
Shifters	SRAM 3.0
Front derailleur	Shimano FD-C051, dual-pull/clamp-on 31.8mm
Rear derailleur	SRAM 3.0
Crankset	3-piece aluminum, 30/42/52 teeth
Bottom bracket	Tien Hsin BB-7420ST, 117.5mm spindle
BB shell width	68mm American
Rear cogs	8-speed, 11 - 32 teeth
Chain	KMC Z72, 1/2 x 3/32"
Pedals	Wellgo

Brakes

Brakes	Quad QMD-6 mechanical disc brakes, Promax alloy levers

Cockpit & contact points

Headset	1 1/8" threaded Tien Hsin
Handlebar	Sun USS
Handlebar extensions	Not included
Stem	Aluminum threadless
Saddle	Sun Steel Cool Back
Seatpost	N/A

Wheels & tires

Hubs	Front: Sun Tadpole Aluminum, Rear: Promax DB-600R
Rims	Aluminum single wall, 36-hole
Spokes	Stainless steel, 14ga. (2.0mm) straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1.50" Kenda Kwest
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 27, 2026.