Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Identity & price
These bicycles are categorized differently: 2009 Jamis Allegro 2X is Hybrid; 2010 Jamis Allegro 2X is City & Commuter.
- Data limitation
No geometry is recorded for 2009 Jamis Allegro 2X and 2010 Jamis Allegro 2X.
- Gearing
2010 Jamis Allegro 2X has a 18% lower climbing ratio than 2009 Jamis Allegro 2X.
A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest0.94:1Highest4.55:1Total range485%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×35; rear size isn’t listed.
Lowest0.76:1Highest4.36:1Total range571%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×35; 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.
Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
Specification
2009 Jamis Allegro 2X
2010 Jamis Allegro 2X
Overview
Model Year
2009
2010
Brand
Jamis
Jamis
Model
Allegro 2X
Allegro 2X
Bicycle Type
Hybrid
City/commuter
Original MSRP
$785.00
Not documented
Colors
Pearl White/Gloss Black
Gloss Black/Machine Silver, Ocean Mist/Gloss Black
Sizes
14.5", 16", 17.5", 19.5", 21.5", 23"
15", 17", 19", 21", 23", womens 14", womens 18", womens 20"
Weight
28.9 lb
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
6061 Triple Butted Aluminum
6061 Triple Butted Aluminum w/Hydroform TT & DT
Fork
SR Suntour NEX-4610 HLO, 63mm travel
SR/SunTour NEX-4610-V2-MLO, 63mm travel
Fork Material
Aluminum, single crown
Aluminum, single crown
Drivetrain
Component Group
Hybrid Mix
Commuter Mix
Shifters
Shimano ST-R440
Shimano Deore M590 Rapidfire Plus
Front Derailleur
Shimano R453
Shimano Deore M590, bottom pull
Rear Derailleur
Shimano Deore
Shimano Deore M591
Crankset
FSA Vero Triple, 30/39/50 teeth
FSA Dyna Drive, 48/36/26 teeth
Bottom Bracket
FSA sealed, 118mm spindle
FSA Sealed Cartridge, 110mm spindle
BB Shell Width
68mm
68mm
Cassette
SRAM PG-950
SRAM PowerGlide 950
Rear Cogs
9-speed, 11 - 32 teeth
9-speed, 11 - 34 teeth
Chain
KMC Z9000
KMC Z9000
Pedals
Alloy Platform
Alloy Platform
Brakes
Brakes
Tektro Direct pull brakes, Tektro alloy levers
Shimano BR-M416 Mechanical disc with 160mm rotor brakes, Tektro alloy levers
Cockpit & Contact Points
Headset
1 1/8" Aheadset
1 1/8" threadless Internal Cup
Handlebar
Jamis alloy flat bar
Jamis butted 6061 Alloy Riser Bar
Handlebar Extensions
Not included
Not included
Stem
NVO adjustable
NVO TM3 adjustable
Saddle
Selle San Marco Elba
Selle San Marco Elba
Seatpost
Jamis alloy micro-adjust, 27.2mm diameter
Jamis alloy micro-adjust, 27.2mm diameter
Wheels & Tires
Hubs
Shimano 2200
Formula disc
Rims
Alex ACE-24, 32-hole
Alex DC25 disc rims, 32-hole
Spokes
Stainless, 14ga. (2.0mm)
Stainless steel, 14ga. (2.0mm)
Front Tire
700 x 35c Vittoria Randonneur Trail
700 x 35c Vittoria Randonneur Trail
Wheel Size
700c wheels
700c wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.