2019 Marin Bolinas Ridge 1

Modest component level aluminum frame hybrid bike

View on marinbikes.com

2019 Marin Bolinas Ridge 1
  • MSRP $430
  • Suspension Full
  • Front Travel 100mm
  • Rear Travel 68mm
  • Frame Aluminum
  • Wheels 27.5″ Aluminum
  • Drivetrain 3 × 7
  • Groupset 
    Shimano Tourney

3 × 7 — 21 speed

2019 Marin Bolinas Ridge 1
31 mph
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31 mph

The 2019 Bolinas Ridge 1 is easier to ride up hills than similar bikes.

The 2019 Bolinas Ridge 1 is geared about the same as similar bikes for riding downhill.


Oh snap! This frame was drawn from the actual bike geometry measurements. Roll over the table below to highlight frame dimensions.

Stack 583588592597602606
Reach 397410426444460470
Stack/Reach Ratio1.471.431.391.341.311.29
Top Tube Length 575590607627644655
Seat Tube Length 330381431482520559
Seat Tube Angle73.
Head Tube Length 100105110115120125
Head Tube Angle69.
BB Drop 484848484848
BB Height 305305305305305305
Front Center 651666684704721733
Chainstay Length 430430430430430430
Wheelbase 1,0771,0921,1091,1301,1471,158
Rake 444444444444
Standover Height 645686728769799829
🐐 Measurements listed in millimeters and degrees
FrameSeries 1 6061 Aluminum, 27.5” Wheels, 68mm BB shell, 135mm Forged Dropouts, IS Seatstay Disc Mounts
ForkSR Suntour XCT-DS 27.5”, 100mm Travel, Custom Coil Spring
Bottom BracketSealed Cartridge Bearings, Square Taper
HeadsetFSA No.10-P
StemMarin Alloy, 60mm
HandlebarMarin Riser, 25mm Rise, 700mm Width
SaddleMarin MTB
SeatpostMarin Alloy
PedalsNylon Platform
GripsMarin Dual Density
Front DerailleurShimano FD-TX500
Rear DerailleurShimano Tourney, 7-Speed
ShiftersShimano Tourney 3x7-Speed
CrankShimano FC-TY301, 42/34/24T
CassetteSunRace 7-Speed, 11-34T
ChainKMC Z50
Brake LeversShimano w/ Integrated Shifters
RimsMarin, Double Wall Alloy
Spokes15g Black Stainless Steel
TiresMountain Tire, 27.5”x2.1"
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2019 Marin Bolinas Ridge 1