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.
- Data limitation
No geometry is recorded for 1999 Marin Bolinas Ridge.
- Gearing
1999 Marin Bolinas Ridge has a 14% lower climbing ratio than 1998 Marin Bolinas Ridge.
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.
Lowest0.73:1Highest3.82:1Total range521%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×2; rear size isn’t listed.
Lowest0.86:1Highest3.82:1Total range445%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×2.1; 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
1999 Marin Bolinas Ridge
1998 Marin Bolinas Ridge
Overview
Model Year
1999
1998
Brand
Marin
Marin
Model
Bolinas Ridge
Bolinas Ridge
Bicycle Type
Mountain bike, non-suspension
Mountain bike, non-suspension
Original MSRP
$316.00
$299.00
Colors
Misty Blue, Orange
Gloss red, Matte Denim
Sizes
11.5", 13.5", 15.5", 17.5", 19", 20.5", womens 17"
11.5", 13.5", 15.5", 17.5", 19", 20.5", womens 17.5"
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Chromoly, butted
Tange chromoly
Fork
Marin
Marin
Fork Material
Chromoly, unicrown crown
Chromoly, unicrown crown
Drivetrain
Component Group
Mountain Mix
Mountain Mix
Shifters
SRAM ESP 5.0
Shimano Alivio EZ Fire Plus
Front Derailleur
Shimano Alivio top-swing
Shimano Altus top-swing, bottom bracket mount
Rear Derailleur
SRAM ESP 5.0
Shimano AceraX
Crankset
Cyclone, 22/32/42 teeth
Shimano Altus, 24/34/42 teeth
Bottom Bracket
—
Shimano BB-CT91, 116mm spindle
BB Shell Width
—
68mm English
Rear Cogs
8-speed, 11 - 30 teeth
7-speed, 11 - 28 teeth
Chain
1/2 x 3/32"
KMC UG-50, 1/2 x 3/32"
Pedals
Resin
Resin
Brakes
Brakes
Aluminum linear-pull brakes, aluminum linear-pull levers
Aluminum linear-pull brakes, Shimano Alivio ST EF-28 levers
Cockpit & Contact Points
Headset
1 1/8" threadless Ritchey Logic
1 1/8" threadless steel
Handlebar
Aluminum, rise
Aluminum
Handlebar Extensions
Not included
Not included
Stem
Alloy Ahead
Marin Lite aluminum
Saddle
Marin Comfort
Marin Comfort
Seatpost
Aluminum micro-adjust
Aluminum micro-adjust, 27.0mm diameter
Wheels & Tires
Hubs
Aluminum, Q/R
Shimano Altus
Rims
Alloy, double wall, 32-hole
Alex VP-20F, 36-hole
Spokes
Stainless steel, 1.8mm straight gauge
Steel, 1.8mm straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
26 x 2.00" IRC Mythos XC
26 x 2.10" IRC Mythos XC
Wheel Size
26" wheels
26" wheels
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
—
70°
Seat-tube angle
—
73°
Chainstay / rear center
—
426.7 mm
Wheelbase
—
1056.6 mm
Fork offset / rake
—
45 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.