Velopedia Bicycle Archive

Compare Bicycles

Compare published geometry, gearing and specifications for up to three bicycles.

1 of 2 bicycles

At a glance

Key differences

Supported differences are shown below. Data limitations are labeled separately.

  1. Data limitation

    No geometry is recorded for 2007 Giant Trinity A1 and 2008 Giant Trinity A1.

  2. Gearing

    2007 Giant Trinity A1 has a 8% lower climbing ratio than 2008 Giant Trinity A1.

    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.

2007 Giant Trinity A153/39T · 12–25T · 10-speed
Lowest1.56:1Highest4.42:1Total range283%
Estimated speed at 90 RPMLowest gear11.0 mphHighest gear31.1 mph

Uses front tire 700C×23; rear size isn’t listed.

2008 Giant Trinity A153/39T · 11–23T · 10-speed
Lowest1.70:1Highest4.82:1Total range284%
Estimated speed at 90 RPMLowest gear11.9 mphHighest gear33.9 mph

Uses front tire 700C×23; 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.

Try other gearing

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.
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Specification
2007 Giant Trinity A1
2008 Giant Trinity A1
Overview
Model Year
2007
2008
Brand
Giant
Giant
Model
Trinity A1
Trinity A1
Bicycle Type
Road race & triathlon
Road race & triathlon
Original MSRP
$2,000.00
$2,000.00
Colors
Brushed/ Composite/ Red
Yellow/Gray
Sizes
XS, S, M, L
XS, S, M, L
Weight
—
—
Frameset
Frame Construction
TIG-welded/bonded
TIG-welded/bonded
Frame Material
Giant Alliance Composite/AL
Alliance aluminum/composite
Fork
Giant formulaOne
FormulaOne Aero Composite
Fork Material
Carbon fiber/aluminum steerer, aero crown
Carbon/alloy steerer, aero crown
Drivetrain
Component Group
Triathlon Mix
Shimano 105
Shifters
Shimano Dura-Ace SL-BS 78 Bar End
Shimano Dura-Ace Bar-con
Front Derailleur
Shimano 105
Shimano 105
Rear Derailleur
Shimano Ultegra
Shimano Ultegra
Crankset
FSA Gossamer Mega Exo, 39/53 teeth
Race Face Cadence, 39/53 teeth
Bottom Bracket
FSA Mega EXO
Race Face Road X-Type
Rear Cogs
10-speed, 12 - 25 teeth
10-speed, 11 - 23 teeth
Chain
Shimano 105, 1/2 x 3/32"
Shimano 105
Pedals
—
Not included
Brakes
Brakes
Tektro 423AG brakes, Tektro RX 4.1 levers
Shimano 105 brakes, Tektro RX 4.1 levers
Cockpit & Contact Points
Headset
1 1/8" threadless
1 1/8" integrated
Handlebar
6061 AL base bar
Vision
Handlebar Extensions
Easton Aeroforce AL
Vision straight clip-on
Stem
3D Forged Alloy
Vision Size More
Saddle
Giant Triathlon
Fi'zi:k Arione Tri 2 w/manganese rails
Seatpost
Giant formulaOne Composite Aero
FormulaOne composite, aero diameter
Wheels & Tires
Hubs
Xero XSR-3
Xero XGR-1
Rims
Xero XSR-3
Xero XGR-1
Spokes
Xero, Wheelset
Xero
Front Tire
700 x 23c Hutchinson Top Speed
700 x 23c Michelin Pro Race3
Wheel Size
700c wheels
700c wheels

Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.

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