Bicycle Archive · Specification report

2021 Jamis Hudson E2

Velopedia Archive ID 900001690

Overview

Model year	2021
Brand	Jamis
Model	HUDSON E2
Bicycle type	Electric-assist
Archive ID	900001690
Original MSRP	$2,199.95
Colors	Deep Blue, Thunder Gray
Sizes	19″; 14″ S/T; 18″ S/T
Weight	47.50 lbs

Frameset

Frame construction	6061 TIG-welded aluminum, Hudson laid-back design with low ride height, alloy kickstand
Frame material	Aluminum
Fork	Hi-tensile unicrown with radiused blades

Drivetrain

Component group	Shimano RD-TY300 rear
Shifters	Shimano Altus SL-M310, 7-speed
Rear derailleur	Shimano RD-TY300 rear
Crankset	Forged alloy crank, single 42T chainring, 170mm, with full length chainguard
Bottom bracket	Sealed cartridge, 68 x 122.5mm w/ single side torque sensor
Cassette	Shimano freewheel 7-speed, 14-34
Chain	KMC Z51
Pedals	Comfort platform with TPE non-slip insert

Brakes

Brakes	Tektro HD-M275 hydraulic disc brakes with 160mm rotors and Tektro brake levers.

Cockpit & contact points

Headset	Internal cup, threaded, 1 1/8”
Handlebar	Comfort hi-rise, alloy 25.4 x 80mm rise x 15˚ sweep x 640mm
Stem	Jamis alloy, 180mm quill x 80mm extension
Saddle	Jamis Comfort with memory foam, synthetic suede top, burnished side panels and bumper springs
Seatpost	Alloy micro-adjust, 31.6 x 300mm, with alloy QR clamp

Wheels & tires

Wheels	Alex DC25 alloy double-wall rims, 36H, alloy QR front hub with Hyena 250w rear hub drive motor, 14g black stainless steel spokes
Front tire	CST Metropolitan Palm Bay, 27.5 x 2.35
Rear tire	CST Metropolitan Palm Bay, 27.5 x 2.35
Wheel size	27.5

E-bike system

Motor	Rear hub motor providing Class-1 assist up to 20MPH
Battery	320wh battery provides an average range of 20-50 miles

Geometry · 19″

Effective top tube	627 mm
Head tube	180 mm
Head-tube angle	68°
Seat-tube angle	67°
Chainstay / rear center	485 mm
Wheelbase	1141 mm
Bottom-bracket height	286 mm
Standover height	797 mm
Fork offset / rake	55 mm

Geometry · 14″ S/T

Effective top tube	587 mm
Head tube	165 mm
Head-tube angle	68°
Seat-tube angle	67°
Chainstay / rear center	485 mm
Wheelbase	1101 mm
Bottom-bracket height	286 mm
Standover height	466 mm
Fork offset / rake	55 mm

Geometry · 18″ S/T

Effective top tube	607 mm
Head tube	185 mm
Head-tube angle	68°
Seat-tube angle	67°
Chainstay / rear center	485 mm
Wheelbase	1121 mm
Bottom-bracket height	286 mm
Standover height	488 mm
Fork offset / rake	55 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 13, 2026.