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.
- Frame geometry
2015 Specialized Allez Sport has 7 mm more reach than 2021 Specialized Allez Sport in the selected sizes.
More reach puts the head-tube reference farther forward, not necessarily the hands.
- Frame geometry
2021 Specialized Allez Sport has 22 mm more stack than 2015 Specialized Allez Sport in the selected sizes.
More stack places the frame reference higher, not necessarily the handlebar.
- Gearing
2021 Specialized Allez Sport has a 16% lower climbing ratio than 2015 Specialized Allez Sport.
A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.
- Identity & price
2015 Specialized Allez Sport had an original MSRP $230 lower than 2021 Specialized Allez Sport.
Original MSRP is the published list price when new, not today’s used-bike value.
Selected-size geometry
Geometry overlay
Frames share one scale and a bottom-bracket alignment. Size labels differ by brand; schematic drawing aids are identified below.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest1.06:1Highest4.55:1Total range428%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 700C×26.
Lowest1.26:1Highest4.17:1Total range331%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 700C×25.
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
2021 Specialized Allez Sport
2015 Specialized Allez Sport
Overview
Model Year
2021
2015
Brand
Specialized
Specialized
Model
Allez Sport
Allez Sport
Bicycle Type
Road
Road
Original MSRP
$1,200.00
$970.00
Colors
Gloss Blaze/Tarmac Black, Satin Cast Blue Metallic/Gloss Ice Blue, Gloss/Satin Dove Grey/Black
Gloss Monster Green / Satin Black / White, Gloss Red / White / Black
Sizes
44, 49, 52, 54, 56, 58, 61
49, 52, 54, 56, 58, 61
Weight
—
—
Frameset
Frame Construction
Specialized E5 Premium Aluminum, fully manipulated tubing w/ SmoothWelds, 1-1/8"- 1-3/8" tapered head tube, internal cable routing, threaded BB, 130mm spacing
Specialized E5 Premium Aluminum, fully manipulated tubing w/ smooth welds, 1-1/8"" lower bearing
Frame Material
Aluminum
Aluminum
Fork
Specialized FACT carbon, 1-1/8" to 1-3/8" taper, fender eyelets
Specialized FACT carbon, alloy crown/steerer
Fork Material
Carbon Fiber
Carbon Fiber
Drivetrain
Component Group
—
Shimano Sora
Shifters
Shimano Sora, 9-speed
Shimano Sora STI
Front Derailleur
Shimano Sora, clamp-on
Shimano Sora
Rear Derailleur
Shimano Sora, 9-speed
Shimano Sora, 9-speed
Crankset
Praxis Alba; chainrings: 50/34T
Shimano Sora, 50/34
Bottom Bracket
Praxis 68mm BSA
—
BB Shell Width
68 mm
—
Cassette
SunRace, 9-speed, 11-32t
Shimano, 9-speed, 12-27
Chain
KMC X9, 9-speed w/ Missing Link™
KMC X9, 9-speed, reusable Missing Link
Pedals
—
Nylon flat test ride, loose-ball, w/ reflectors
Brakes
Brakes
(F) Axis 1.0 caliper / (R) Axis 1.0 caliper
(F) Axis 1.0 / (R) Axis 1.0
Cockpit & Contact Points
Headset
—
1-1/8"" integrated sealed Cr-Mo cartridge bearings, 20mm alloy cone spacer, w/ 20mm of spacers
Handlebar
Specialized Shallow Drop, 6061, 70x125mm, 31.8mm clamp
Specialized, shallow drop, alloy, 125mm drop, 70mm short-reach
Stem
Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
Specialized 3D forged alloy, 4-bolt, 6-degree rise
Saddle
Body Geometry Bridge Saddle, steel rails
Body Geometry Toupé Sport, hollow Cr-Mo rails, 143mm
Seatpost
Alloy, 2-bolt Clamp, 12mm offset, 27.2mm, anti-corrosion hardware
Specialized Sport, alloy, 2-bolt, 27.2mm
Wheels & Tires
Hubs
—
AXIS Classic
Wheels
(F) Axis Sport / (R) Axis Sport
(F) AXIS Classic / (R) AXIS Classic
Rims
—
AXIS Classic
Front Tire
RoadSport, 700x26mm
Specialized Espoir Sport, 60TPI, wire bead, double BlackBelt protection, 700x25c
Rear Tire
RoadSport, 700x26mm
Specialized Espoir Sport, 60TPI, wire bead, double BlackBelt protection, 700x25c
Wheel Size
—
700c
Geometry · choose a size for each bicycle
Geometry size
Reach
380 mm
387 mm
Stack
570 mm
548 mm
Effective top tube
552 mm
548 mm
Head-tube angle
73°
73°
Seat-tube angle
73.25°
73.5°
Seat tube
510 mm
—
Head tube
155 mm
145 mm
Chainstay / rear center
420 mm
407 mm
Wheelbase
991 mm
980 mm
Bottom-bracket drop
76 mm
69 mm
Bottom-bracket height
264 mm
—
Standover height
763 mm
783 mm
Fork offset / rake
47 mm
45 mm
Front center
585 mm
583 mm
Trail
55 mm
58 mm
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.