Velopedia Bicycle Archive

2010 Jamis Allegro 2

Original specifications: Shimano Sora · 8-speed rear derailleur · 700c wheels.

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At a glance

Archive #19567
Model year
2010
Category
City & Commuter
Sizes
15", 17", 19", 21", 23"
Colors
Machine Silver
In this record
27 specifications · archived image
Model history 1 other year

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Identification clues

2010 archived details

Published colors
Machine Silver
Frame
6061 Triple Butted Aluminum w/Hydroform TT & DT
Original equipment
Commuter Mix

Clues, not proof of model year. Colors vary and components may have been replaced.

Campaign
Original build6061 Triple Butted Aluminum w/Hydroform TT & DT · Commuter Mix · 700c wheels

Historical catalog variants

Archived sizes and colors

5 item records

Item-level catalog entries recovered from Velopedia’s original bicycle archive. They document how this model was listed historically; they do not identify the frame size associated with legacy reference geometry or indicate current availability.

Published sizes

15"17"19"21"23"

Published colors

Machine Silver
View 5 archived size/color combinations
SizeColor
15"Machine Silver
17"Machine Silver
19"Machine Silver
21"Machine Silver
23"Machine Silver

Historical catalog evidence. Exact specifications and naming may vary by market, production run or manufacturer revision.

Frameset

Frame ConstructionTIG-welded
Frame Material6061 Triple Butted Aluminum w/Hydroform TT & DT
ForkJamis
Fork MaterialAlloy, unicrown crown

Drivetrain

Component GroupCommuter Mix
ShiftersShimano ST-R221 for flat bar
Front DerailleurShimano R440, bottom pull
Rear DerailleurShimano Sora
CranksetFSA Tempo Compact, 50/34 teeth
Bottom BracketFSA Sealed Cartridge, 110mm spindle
BB Shell Width68mm
CassetteSRAM PowerGlide 850
Rear Cogs8-speed, 12 - 26 teeth
ChainKMC Z82
PedalsPlatform Resin with Steel Cage

Brakes

BrakesTektro RX-1.0 mini V with Modulator front/Tektro RX-1.0 mini V rear brakes, Shimano 221 levers

Cockpit & Contact Points

Headset1 1/8" threadless FSA Integrated IS
HandlebarJamis alloy flat bar
Handlebar ExtensionsNot included
StemNVO TM3 adjustable
SaddleSelle San Marco Elba
SeatpostJamis alloy micro-adjust, 27.2mm diameter

Wheels & Tires

HubsAlex AKX R1.0
RimsAlex AKX R1.0, 28-hole/32-hole
SpokesStainless steel, 14ga. (2.0mm)
Front Tire700 x 32c Vittoria Rondenour
Wheel Size700c wheels

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

All published sizes50/34T · 12–26T · 8-speed
Lowest1.31:1 Highest4.17:1 Total range319%
Estimated speed At 90 RPM Lowest gear9.5 mph Highest gear30.1 mph

Uses front tire 700C×32; rear size isn’t listed.

How it works

Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.

Speeds are estimates from tire size and pedal cadence. Actual speeds vary.

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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
Chain · Original
KMC Z82
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Front tire · Original
700 x 32c Vittoria Rondenour
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Other replacement options (1)
Seatpost · Original
Jamis alloy micro-adjust

27.2mm diameter

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More parts (5)Fewer parts
Crankset · Original
FSA Tempo Compact

50/34 teeth

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Rear derailleur · Original
Shimano Sora
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Shifters · Original
Shimano ST-R221 for flat bar
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Headset · Original
1 1/8" threadless FSA Integrated IS
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Hubs · Original
Alex AKX R1.0
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Parts and service referenceQuick reference before buying parts

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

Front tire
700 x 32c Vittoria Rondenour
Drivetrain
8-speed
Seatpost diameter
27.2 mm
Bottom bracket / shell
FSA Sealed Cartridge, 110mm spindle · 68mm
Equipment inspection checks 10 checks based on 5 archived component groups Open equipment checksClose equipment checks
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Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.

Full used-bike inspection guide →

Frame and fork

Inspect the frame and fork →

Archived: Frame: TIG-welded · Fork: Jamis · Alloy, unicrown crown

Drivetrain

Check drivetrain wear →

Archived: Group: Commuter Mix · Shifters: Shimano ST-R221 for flat bar · Front derailleur: Shimano R440, bottom pull · Rear derailleur: Shimano Sora · Crankset: FSA Tempo Compact, 50/34 teeth · Bottom bracket: FSA Sealed Cartridge, 110mm spindle · Cassette: SRAM PowerGlide 850 · Rear cogs: 8-speed, 12 - 26 teeth · Chain: KMC Z82

Brakes

Inspect the brakes →

Archived: Brakes: Tektro RX-1.0 mini V with Modulator front/Tektro RX-1.0 mini V rear brakes, Shimano 221 levers

Wheels and tires

Check wheels and tires →

Archived: Wheel size: 700c wheels · Rims: Alex AKX R1.0, 28-hole/32-hole · Hubs: Alex AKX R1.0 · Front tire: 700 x 32c Vittoria Rondenour

Controls and contact points

Archived: Headset: 1 1/8" threadless FSA Integrated IS · Handlebar: Jamis alloy flat bar · Stem: NVO TM3 adjustable · Seatpost: Jamis alloy micro-adjust, 27.2mm diameter · Saddle: Selle San Marco Elba · Pedals: Platform Resin with Steel Cage

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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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