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 2004 Marin Portofino.
- Identity & price
2004 Marin Portofino had an original MSRP $200 lower than 2003 Marin Portofino.
Original MSRP is the published list price when new, not today’s used-bike value.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest1.20:1Highest4.33:1Total range361%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×23; rear size isn’t listed.
Lowest1.25:1Highest4.33:1Total range347%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×28; 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
2003 Marin Portofino
2004 Marin Portofino
Overview
Model Year
2003
2004
Brand
Marin
Marin
Model
Portofino
Portofino
Bicycle Type
Road race & triathlon
Road race & triathlon
Original MSRP
$999.99
$799.99
Colors
Black
Gloss Metallic Black/Silver
Sizes
48cm, 51cm, 53cm, 55cm, 57cm, 59cm
S, M, L, XL
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Columbus Thron
Columbus Thron,/carbon fiber
Fork Material
Carbon fiber composite, unicrown crown
Carbon fiber
Drivetrain
Component Group
Shimano Sora Triple
Road Mix
Shifters
Shimano Sora STI Dual Control
Shimano Sora STI Dual Control
Front Derailleur
Shimano Sora Triple
Shimano FD-2203
Rear Derailleur
Shimano Sora GS
Shimano Sora
Crankset
Shimano Sora, 30/42/52 teeth
TruVativ Touro, 30/42/52 teeth
Bottom Bracket
Sealed cartridge
TruVativ cartridge
BB Shell Width
68mm English
—
Rear Cogs
8-speed, 12 - 25 teeth
8-speed, 12 - 24 teeth
Chain
Shimano CN-UG50, 1/2 x 3/32"
Shimano HG-50
Pedals
Aluminum cage w/clips & straps
Alloy, Toe Clip and Strap
Brakes
Brakes
Shimano Sora Dual Pivot brakes, Shimano Sora STI Dual Control levers
Shimano Sora Dual Pivot brakes, Shimano Sora STI Dual Control levers
Cockpit & Contact Points
Headset
1" Ritchey Logic
1 1/8" threadless Ritchey Logic
Handlebar
Cinelli Altera
Cinelli Altera
Handlebar Extensions
Not included
Not included
Stem
3T Mutant
Forged and CNC 4 bolt road
Saddle
Selle Italia XO
Selle Italia XO XP
Seatpost
Aluminum micro-adjust
Comp Alloy Micro Adjust
Wheels & Tires
Hubs
Formula Xero Lite XR4
Shimano 2200
Rims
Formula Xero Lite XR4, 20-hole/24-hole
Mavic CXP 22, 32-hole
Spokes
Formula
DT stainless steel, 15ga. (1.8mm) straight gauge
Spoke Nipples
—
Aluminum nipples
Front Tire
700 x 23c Kenda Koncept
700 x 28c Kenda Road
Wheel Size
700c wheels
700c wheels
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
73°
—
Seat-tube angle
73.5°
—
Chainstay / rear center
405 mm
—
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run. Legacy reference geometry is model-level historical data whose corresponding frame size is not identified; compare those dimensions as reference values rather than size-normalized fit data.