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2025 Jamis Allegro A1

Original specifications: Shimano CUES RD-U3020 rear and FD-U4010-L front derailleur drivetrain · 25.75 lbs published weight · geometry for 5 published sizes.

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At a glance

Archive #900001691
Model year
2025
Category
Road
Original MSRP
$999.95
Sizes
15, 17, 19, 21, 23
Colors
Storm Grey
Weight
25.75 lbs
Geometry
5 manufacturer sizes
In this record
22 specifications · archived image · original MSRP · geometry
Campaign
Original buildAluminum · Shimano CUES RD-U3020 rear and FD-U4010-L front derailleur

Manufacturer catalog

Published sizes and colors

5 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

1517192123

Published colors

Storm Grey

Frameset

Frame ConstructionSize 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 MaterialAluminum
ForkJamis 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 MaterialCarbon

Drivetrain

Component GroupShimano CUES RD-U3020 rear and FD-U4010-L front derailleur
ShiftersShimano CUES SL-U4000 Rapid Fire, 18-speed.
Front DerailleurShimano CUES RD-U3020 rear and FD-U4010-L front derailleur
Rear DerailleurShimano CUES RD-U3020 rear and FD-U4010-L front derailleur
CranksetShimano CUES FC-U4010-2, 46/30, 170mm (15-19”), 175mm (21-23”).
Bottom BracketShimano sealed cartridge, 68 x 110.5mm
CassetteShimano CS-LG300-9 9-speed, 11-36T
ChainKMC Xglide
PedalsPlatform style, steel cage/resin body

Brakes

BrakesTektro 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

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

Wheels & Tires

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

Geometry

5 sizes · 11 measurements

Frame measurements by size.

All geometry measurements5 sizes · 11 measurements
Measurement1517192123
Effective top tube554 mm566 mm577 mm589 mm601 mm
Head tube120 mm145 mm170 mm190 mm215 mm
Head-tube angle72°72°72°73°73°
Seat-tube angle73°73°73°73°73°
Chainstay / rear center435 mm435 mm435 mm440 mm440 mm
Wheelbase1027 mm1039 mm1052 mm1059 mm1071 mm
Bottom-bracket drop57.5 mm57.5 mm55 mm55 mm55 mm
Reach386 mm391 mm396 mm401 mm406 mm
Stack546 mm570 mm591 mm614 mm638 mm
Standover height734 mm766 mm804 mm839 mm872 mm
Fork offset / rake48 mm48 mm48 mm48 mm48 mm

Dimensions as recorded.

Gearing

Original gearing is incomplete. Enter your setup to calculate ratios and cadence speeds.

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications
Front tire · Original
Kenda Kwick Tendril with anti-puncture protection and reflective sidewalls

700 x 35c

Retailer offers
Other replacement options (1)
Seatpost · Original
Jamis alloy micro-adjust

27.2 x 350mm alloy clamp with QR seatpin

Retailer offers
Cassette · Original
Shimano CS-LG300-9 9-speed

11-36T

More parts (5)Fewer parts
Brake pads · Original
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)

Crankset · Original
Shimano CUES FC-U4010-2

46/30, 170mm (15-19”), 175mm (21-23”).

Shifters · Original
Shimano CUES SL-U4000 Rapid Fire

18-speed.

Headset · Original
FSA Integrated IS threadless with nylon upper compression ring

1 1/8”

Wheels · Original
Alex SD20 double wall disc specific alloy rims

32H, Joytec 6-bolt alloy hubs with QR and 14g stainless steel spokes

Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.

Service essentialsQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire
Kenda Kwick Tendril with anti-puncture protection and reflective sidewalls, 700 x 35cCheck: Verify the fitted tire’s size marking and rim type.
Rear tire
Kenda Kwick Tendril with anti-puncture protection and reflective sidewalls, 700 x 35cCheck: Verify the rear size; it may differ from the front.
Drivetrain
9-speedCheck: Match the installed drivetrain family, not just its speed count.
Seatpost diameter
27.2 mmCheck: Read the post’s diameter marking; seat-clamp size differs.
Bottom bracket / shell
Shimano sealed cartridge, 68 x 110.5mmCheck: Verify shell type and width, crank interface, and spindle length or spacers.
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
0 of 19 checked Progress stays in this browser for this record.

This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 2025 Jamis Allegro A1 · Road · Published sizes: 15, 17, 19, 21, 23

Archived: Frame: 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 · 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 · Carbon

Archived: 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

Archived: 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)

Archived: 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

Controls and contact points

Archived: 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”) · Seatpost: Jamis alloy micro-adjust, 27.2 x 350mm alloy clamp with QR seatpin · Saddle: NEW Jamis Touring with SL cover · Pedals: Platform style, steel cage/resin body

Before and during the test ride

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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