Bicycle Archive · Specification report

2025 Jamis Allegro A1

Velopedia Archive ID 900001691

Overview

Model year	2025
Brand	Jamis
Model	ALLEGRO A1
Bicycle type	Road
Archive ID	900001691
Original MSRP	$999.95
Colors	Storm Grey
Sizes	15; 17; 19; 21; 23
Weight	25.75 lbs

Frameset

Frame construction	Size Specific Design Triple-butted 6061 aluminum with fast back rear triangle, internal cable routing, formed top and down tube, oval chain stays with flat mount disc brake, kickstand mount, replaceable derailleur hanger and fender/ rack eyelets
Frame material	Aluminum
Fork	Jamis full carbon composite with carbon steerer, Flat mount disc brake, low-rider carrier mounts and carbon drop out with stainless steel tabs and fender eyelets
Fork material	Carbon

Drivetrain

Component group	Shimano CUES RD-U3020 rear and FD-U4010-L front derailleur
Shifters	Shimano CUES SL-U4000 Rapid Fire, 18-speed.
Front derailleur	Shimano CUES RD-U3020 rear and FD-U4010-L front derailleur
Rear derailleur	Shimano CUES RD-U3020 rear and FD-U4010-L front derailleur
Crankset	Shimano CUES FC-U4010-2, 46/30, 170mm (15-19”), 175mm (21-23”).
Bottom bracket	Shimano sealed cartridge, 68 x 110.5mm
Cassette	Shimano CS-LG300-9 9-speed, 11-36T
Chain	KMC Xglide
Pedals	Platform style, steel cage/resin body

Brakes

Brakes	Tektro HD-M280/281 hydraulic Flat Mount disc brakes with 160mm rotors and Tektro brake levers. 15-17” M281 (83mm reach); 19-23” M280 (88mm reach)

Cockpit & contact points

Headset	FSA Integrated IS threadless with nylon upper compression ring, 1 1/8”
Handlebar	Jamis Flat bar, 6061 T-6 aluminum, 31.8 x 10 ̊ sweep x 600mm (15-17”) 620mm (19-23”)
Stem	Jamis Road 3D forged alloy, 10 ̊ rise x 90mm (15/17”), 105mm (19/21”), 115mm (23”)
Saddle	NEW Jamis Touring with SL cover
Seatpost	Jamis alloy micro-adjust, 27.2 x 350mm alloy clamp with QR seatpin

Wheels & tires

Wheels	Alex SD20 double wall disc specific alloy rims, 32H, Joytec 6-bolt alloy hubs with QR and 14g stainless steel spokes
Front tire	Kenda Kwick Tendril with anti-puncture protection and reflective sidewalls, 700 x 35c
Rear tire	Kenda Kwick Tendril with anti-puncture protection and reflective sidewalls, 700 x 35c

Geometry · 15

Effective top tube	554 mm
Head tube	120 mm
Head-tube angle	72°
Seat-tube angle	73°
Chainstay / rear center	435 mm
Wheelbase	1027 mm
Bottom-bracket drop	57.5 mm
Reach	386 mm
Stack	546 mm
Standover height	734 mm
Fork offset / rake	48 mm

Geometry · 17

Effective top tube	566 mm
Head tube	145 mm
Head-tube angle	72°
Seat-tube angle	73°
Chainstay / rear center	435 mm
Wheelbase	1039 mm
Bottom-bracket drop	57.5 mm
Reach	391 mm
Stack	570 mm
Standover height	766 mm
Fork offset / rake	48 mm

Geometry · 19

Effective top tube	577 mm
Head tube	170 mm
Head-tube angle	72°
Seat-tube angle	73°
Chainstay / rear center	435 mm
Wheelbase	1052 mm
Bottom-bracket drop	55 mm
Reach	396 mm
Stack	591 mm
Standover height	804 mm
Fork offset / rake	48 mm

Geometry · 21

Effective top tube	589 mm
Head tube	190 mm
Head-tube angle	73°
Seat-tube angle	73°
Chainstay / rear center	440 mm
Wheelbase	1059 mm
Bottom-bracket drop	55 mm
Reach	401 mm
Stack	614 mm
Standover height	839 mm
Fork offset / rake	48 mm

Geometry · 23

Effective top tube	601 mm
Head tube	215 mm
Head-tube angle	73°
Seat-tube angle	73°
Chainstay / rear center	440 mm
Wheelbase	1071 mm
Bottom-bracket drop	55 mm
Reach	406 mm
Stack	638 mm
Standover height	872 mm
Fork offset / rake	48 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 14, 2026.