Jamis ALLEGRO A1 2025
Bike details
Key information split into simple groups.
Bike summary
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Frame Aluminum
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Groupset Altus
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Suspension Rigid
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Drivetrain 2 × 9
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Brakes Tektro Hydraulic Disc
Parts list
Main components, grouped by system.
Bike components
Frame
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
Suspension 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
Drivetrain
Rear Derailleur
Shimano Altus RD-M2000
Front Derailleur
Shimano Altus FD- M370
Shift Levers
Shimano Rapidfire Plus Altus SL-M2010, 18-speed
Cassette
Shimano HG200 9-speed, 11-34T
Crank
Shimano FC-MT210, 46/30, 170mm (15-19”), 175mm (21-23”).
Bottom Bracket
FSA sealed cartridge, 68 x 110.5mm
Chain
KMC Z9
Pedals
Platform style, steel cage/resin body
Wheels
Rims
Alex TD26 double wall disc specific alloy rims, 32H, Joytec 6-bolt alloy hubs with QR and 14g stainless steel spokes
Tires
Vittoria Randonneur with reflective sidewalls, 700 x 35c
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
Stem
Jamis Road 3D forged alloy, 10 ? rise x 90mm (15/17”), 105mm (19/21”), 115mm (23”)
Handlebar
Jamis Flat bar, 6061 T-6 aluminum, 31.8 x 10 ? sweep x 600mm (15-17”) 620mm (19-23”)
Grips
Anatomic double density kraton
Headset
FSA Integrated IS threadless with nylon upper compression ring, 1 1/8”
Seat
Saddle
NEW Jamis Touring with SL cover
Seatpost
Jamis alloy micro-adjust, 27.2 x 350mm alloy clamp with QR seatpin
Fit data
Numbers for sizing and ride feel.
| Size | 14" | 16" | 18" | 15" | 17" | 19" | 21" | 23" |
|---|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.441 mm | 1.463 mm | 1.474 mm | 1.415 mm | 1.458 mm | 1.492 mm | 1.531 mm | 1.571 mm |
| Front Center | 587 mm | 591 mm | 604 mm | 599 mm | 611 mm | 623 mm | 625 mm | 637 mm |
| Rake | 48 mm | 48 mm | 48 mm | 48 mm | 48 mm | 48 mm | 48 mm | 48 mm |
| Trail | 69 mm | 75 mm | 69 mm | 62 mm | 63 mm | 63 mm | 57 mm | 57 mm |
| Stack | 533 mm | 547 mm | 557 mm | 546 mm | 570 mm | 591 mm | 614 mm | 638 mm |
| Reach | 370 mm | 374 mm | 378 mm | 386 mm | 391 mm | 396 mm | 401 mm | 406 mm |
| Top Tube Length | 534 mm | 542 mm | 549 mm | 554 mm | 566 mm | 577 mm | 589 mm | 601 mm |
| Seat Tube Angle | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° | 73 ° |
| Seat Tube Length | 356 mm | 406 mm | 457 mm | 381 mm | 432 mm | 483 mm | 533 mm | 584 mm |
| Head Tube Angle | 71 ° | 71 ° | 71 ° | 72 ° | 72 ° | 72 ° | 73 ° | 73 ° |
| Head Tube Length | 110 mm | 125 mm | 135 mm | 120 mm | 145 mm | 170 mm | 190 mm | 215 mm |
| Chainstay Length | 435 mm | 435 mm | 435 mm | 435 mm | 435 mm | 435 mm | 440 mm | 440 mm |
| Wheelbase | 1015 mm | 1019 mm | 1032 mm | 1027 mm | 1039 mm | 1052 mm | 1059 mm | 1071 mm |
| Bottom Bracket Drop | 57 mm | 57 mm | 57 mm | 57 mm | 57 mm | 55 mm | 55 mm | 55 mm |
| Standover Height | 707 mm | 732 mm | 757 mm | 734 mm | 766 mm | 804 mm | 839 mm | 872 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 | 700 | 700 | 700 |
