Bicycle Archive · Specification report

2024 Jamis Ventura A1

Velopedia Archive ID 900001683

Overview

Model year	2024
Brand	Jamis
Model	VENTURA A1
Bicycle type	Cyclocross/Gravel
Archive ID	900001683
Original MSRP	$1,299.95
Colors	Midnight Blue
Sizes	48; 51; 54; 56; 58; 61
Weight	21.0 lbs

Frameset

Frame construction	Size Specific Design double-butted 6061 aluminum compact sloping top tube frame design with with redesigned rear triangle, SST tubing diameters and internal cable guides, 1 1.5 – 1 1/8” tapered head tube, butted seat tube for 27.2 seat post, flat mount disc brake mount, replaceable derailleur hanger and fender/rack eyelets
Frame material	Aluminum
Fork	Jamis Performance ECO carbon composite with carbon steerer, 1.5” hollow formed crown, monocoque one-piece forming technology, carbon dropouts with stainless tabs, flat mount disc brake mount with internal cable routing, exposed fender eyelets
Fork material	Carbon

Drivetrain

Component group	Shimano Sora RD-R3000 rear and Sora FD-R3000 front with 31.8mm alloy clamp
Shifters	Shimano Sora ST-R3000 Dual Control STI, 18-speed
Front derailleur	Shimano Sora RD-R3000 rear and Sora FD-R3000 front with 31.8mm alloy clamp
Rear derailleur	Shimano Sora RD-R3000 rear and Sora FD-R3000 front with 31.8mm alloy clamp
Crankset	FSA Vero, 50/34T, 170mm (48/51), 172.5mm (54/56), 175mm (58/61)
Bottom bracket	FSA sealed cartridge, 68 x 110.5mm
Cassette	Shimano HG201 9-speed, 11-32T
Chain	KMC Z9
Pedals	Touring platform style, full alloy with toe clips

Brakes

Brakes	Tektro Lyra mechanical disc brakes and Shimano Sora ST- R3000 STI levers

Cockpit & contact points

Headset	FSA Integrated, threadless, 1.5 – 1 1/8”
Handlebar	Ritchey Logic, 6061 aluminum, 31.8 x 400mm (48/51) 420mm (54/56), 440mm (58/61)
Stem	Ritchey 4-Axis, 3D forged 6061 alloy, 6 ̊ x 90mm (48/51), 100mm (54/56), 120mm (58/61)
Saddle	Selle Royal Asphalt with integrated clip system
Seatpost	Ritchey Road, 27.2 x 350mm with alloy clamp

Wheels & tires

Wheels	Alex ATD 470 disc specific rims with TCS (Tubeless Compatible System), 32H, Joytec 6-bolt alloy hubs with QR and 14g stainless steel spokes
Front tire	Vittoria Zaffiro, 700 x 30c
Rear tire	Vittoria Zaffiro, 700 x 30c

Geometry · 48

Effective top tube	505 mm
Head tube	125 mm
Head-tube angle	70°
Seat-tube angle	75°
Chainstay / rear center	415 mm
Wheelbase	988 mm
Bottom-bracket drop	71 mm
Reach	360 mm
Stack	531 mm
Standover height	729 mm
Fork offset / rake	50 mm

Geometry · 51

Effective top tube	526 mm
Head tube	145 mm
Head-tube angle	71.5°
Seat-tube angle	74°
Chainstay / rear center	415 mm
Wheelbase	990 mm
Bottom-bracket drop	69 mm
Reach	365 mm
Stack	553 mm
Standover height	764 mm
Fork offset / rake	50 mm

Geometry · 54

Effective top tube	548 mm
Head tube	160 mm
Head-tube angle	72°
Seat-tube angle	73°
Chainstay / rear center	420 mm
Wheelbase	996 mm
Bottom-bracket drop	68 mm
Reach	373 mm
Stack	570 mm
Standover height	779 mm
Fork offset / rake	43 mm

Geometry · 56

Effective top tube	559 mm
Head tube	185 mm
Head-tube angle	73°
Seat-tube angle	73°
Chainstay / rear center	420 mm
Wheelbase	998 mm
Bottom-bracket drop	68 mm
Reach	376 mm
Stack	598 mm
Standover height	803 mm
Fork offset / rake	43 mm

Geometry · 58

Effective top tube	571 mm
Head tube	205 mm
Head-tube angle	73°
Seat-tube angle	73°
Chainstay / rear center	425 mm
Wheelbase	1015 mm
Bottom-bracket drop	66 mm
Reach	383 mm
Stack	616 mm
Standover height	821 mm
Fork offset / rake	43 mm

Geometry · 61

Effective top tube	582 mm
Head tube	225 mm
Head-tube angle	73°
Seat-tube angle	73°
Chainstay / rear center	425 mm
Wheelbase	1026 mm
Bottom-bracket drop	66 mm
Reach	388 mm
Stack	635 mm
Standover height	838 mm
Fork offset / rake	43 mm

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