Velopedia Bicycle Archive
Compare Bicycles
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.
- Data limitation
No geometry is recorded for 2011 Jamis Allegro 3X and 2008 Jamis Allegro 3X.
- Gearing
2011 Jamis Allegro 3X has a 18% lower climbing ratio than 2008 Jamis Allegro 3X.
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.
Lowest0.76:1Highest4.36:1Total range571%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×35; rear size isn’t listed.
Lowest0.94:1Highest4.55:1Total range485%
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
2011 Jamis Allegro 3X
2008 Jamis Allegro 3X
Overview
Model Year
2011
2008
Brand
Jamis
Jamis
Model
Allegro 3X
Allegro 3X
Bicycle Type
Hybrid
Hybrid
Original MSRP
$975.00
$950.00
Colors
Gloss black/pearl white
Tech Silver/Black
Sizes
15, 17, 19, 21, 23"
16", 17.5", 19.5", 21.5", 23"
Weight
30.00 lbs
29 lb
Frameset
Frame Construction
Aluminum
TIG-welded
Frame Material
6061 Triple Butted Aluminum
6061 aluminum
Fork
SR Suntour NCX-D-LO
SR Suntour NCX-D-LO, 63mm travel
Fork Material
—
Single
Drivetrain
Component Group
Shimano mix
Hybrid Mix
Shifters
Shimano Deore Rapid Fire Plus
Shimano SLR-440
Front Derailleur
Shimano Alivio M430, bottom pull
Shimano R453, bottom-pull/clamp-on
Rear Derailleur
Shimano Deore XT M771
Deore XT
Crankset
FSA Alpha Drive, 48/36/26t teeth
FSA Vero Triple, 30/39/50 teeth
Bottom Bracket
FSA Powerdrive, 113mm spindle
FSA Powerdrive
BB Shell Width
68mm
—
Cassette
SRAM PowerGlide 950
SRAM PG-950
Rear Cogs
9-speed, 11 - 34 teeth
9-speed, 11 - 32 teeth
Chain
KMC Z99
Shimano CN-HG73, 1/2 x 3/32"
Pedals
Full alloy platform
Alloy platform
Brakes
Brakes
Shimano M445 brakes, Shimano M445 levers
Shimano M485 hyraulic brakes w/160mm rotors brakes, Shimano hydraulic levers
Cockpit & Contact Points
Headset
1 1/8" Internal Cup
1 1/8" threadless Internal AheadSet
Handlebar
Jamis alloy riser
Jamis alloy flat bar
Handlebar Extensions
Not included
—
Stem
NVO components
NVO adjustable
Saddle
Selle San Marco Elba
Selle San Marco Elba
Seatpost
Jamis alloy micro-adjust, 27.2mm diameter
Alloy micro-adjust, 27.2mm diameter
Wheels & Tires
Hubs
Shimano M495
Shimano M495 center-lock
Rims
Alex DC25 disc rims, 32-hole
Mavic CXP 22, 32-hole
Spokes
Stainless Steel stainless, 14ga. (2.0mm)
WTB, straight gauge
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.