Bicycle Archive · Specification report

2021 Jamis Hudson

Velopedia Archive ID 900001719

Overview

Model year	2021
Brand	Jamis
Model	HUDSON
Bicycle type	Hybrid
Archive ID	900001719
Original MSRP	$684.95
Colors	Midnight Sky, Gloss Black, Sandstone
Sizes	15″; 17″; 19″; 21″
Weight	29.50 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
Shifters	Shimano Altus SL-M310, 7-speed
Rear derailleur	Shimano RD-TY300
Crankset	Forged alloy crank, single 42T chainring, 170mm, with full length chainguard
Bottom bracket	Sealed cartridge, 68 x 122.5mm
Cassette	Shimano freewheel 7-speed, 14-34
Chain	KMC Z51
Pedals	Comfort platform with TPE non-slip insert

Brakes

Brakes	Forged alloy direct pull brakes w/ Tektro CL530 ergonomic designed alloy levers with kraton insert

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, Formula alloy QR hubs, 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

Geometry · 15″

Effective top tube	581 mm
Head tube	140 mm
Head-tube angle	68°
Seat-tube angle	67°
Chainstay / rear center	485 mm
Wheelbase	1096 mm
Bottom-bracket height	286 mm
Standover height	723 mm
Fork offset / rake	55 mm

Geometry · 17″

Effective top tube	597 mm
Head tube	160 mm
Head-tube angle	68°
Seat-tube angle	67°
Chainstay / rear center	485 mm
Wheelbase	1111 mm
Bottom-bracket height	286 mm
Standover height	761 mm
Fork offset / rake	55 mm

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 · 21″

Effective top tube	648 mm
Head tube	200 mm
Head-tube angle	68°
Seat-tube angle	67°
Chainstay / rear center	485 mm
Wheelbase	1162 mm
Bottom-bracket height	286 mm
Standover height	824 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.