Bolinas Ridge 1
![2023 Marin Bikes Bolinas Ridge 1 profile, grey.](https://s3.us-east-1.amazonaws.com/craft-marinbikes/images/2020/bikes/hero/_bikeHero320Wide/2021_Bolinas-Ridge_1_c1_Color.jpg)
![2021 Marin Bolinas Ridge 1 profile, blue.](https://s3.us-east-1.amazonaws.com/craft-marinbikes/images/2020/bikes/hero/_bikeHero320Wide/2021_Bolinas_Ridge_1_c2_Color.jpg)
See this bike in a different color:
- Price: $629.00*
- Suspension: SR Suntour XCE Disc
- Wheel Size : 27.5", 29"
- Frame: Aluminum
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Size Range:
XS, S, M, L, XL
Size Rider height range XS 4'10" to 5'2" S 5'2" to 5'5" M (27.5/29) 5'5" to 5'9" L 5'9" to 6' XL 6' to 6'4"
RECREATIONAL MOUNTAIN BIKING
ENTRY-LEVEL RIDERS
FITNESS DIRT ROAD RIDING
The Bolinas Ridge is perfectly suited for recreational riders wishing to explore singletrack and dirt trails with a mountain bike built for real trails, with trail capable suspension forks and all-conditions disc brakes.
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Specifications
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Frame
Series 1 6061 Aluminum, 27.5”/29" Wheels, Low Standover, 68mm BB shell, 135mm Forged Dropouts, Chainstay Mounted Disc Brakes
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Front Suspension
SR Suntour XCE Disc, 100mm Travel, Preload Adjustment, 46mm Offset
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Rims
Marin, Double Wall Alloy
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Hub, Rear
Forged Alloy, 32H
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Hub, Front
Forged Alloy, 32H
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Spoke, Nipples
14g Black Stainless Steel
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Tires
MTB, 27.5/29x2.25"
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Derailleur, Rear
Shimano Tourney, 7-Speed
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Derailleur, Front
Shimano FD-TX500
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Shift Lever
Shimano Tourney 3x7-Speed
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Crankset
Alloy Crank, Steel Chainrings, 42/34/24T
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Bottom Bracket
Sealed Cartridge Bearings, Square Taper
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Chain
KMC Z-8.3
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Cassette
SunRace 7-Speed, 11-34T
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Brake, Front
Power CX7 Mechanical Disc, Shimano Pad Compatible, 160mm Rotor
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Brake, Rear
Power CX7 Mechanical Disc, Shimano Pad Compatible, 160mm Rotor
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Brake Levers
Shimano w/ Integrated Shifters
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Handlebar
Marin 31.8 Riser, 12mm Rise, 780mm Width
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Stem
Marin Alloy, 31.8mm, 45mm
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Grips
Marin MTB, Closed End
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Headset
FSA No.10-P
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Seatpost
Marin Alloy, 27.2mm
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Saddle
Marin MTB
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Pedals
Nylon Platform
Specifications, pricing, and availability are subject to change without notice.
Geometry
![Bolinas Ridge 1 geometry diagram](https://s3.us-east-1.amazonaws.com/craft-marinbikes/images/2020/bikes/geometry/_bikeGeometry320Wide/21_MRN_GEO_ALL_HARDTAILS_1416px.jpg)
XS | S | M (27.5) | M (29) | L | XL | XXL | |
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Stack | 580.8 | 585.5 | 590 | 616 | 620.5 | 625 | 630 |
Reach | 400 | 415 | 430 | 430 | 445 | 465 | 475 |
Headtube Angle | 68.5° | 68.5° | 68.5° | 68° | 68° | 68° | 68° |
Headtube Length | 100 | 105 | 110 | 110 | 115 | 120 | 125 |
Seattube Angle | 74° | 74° | 74° | 74° | 74° | 74° | 74° |
Seattube Length | 330 | 381 | 431 | 431 | 481 | 520 | 559 |
Toptube Effective | 566.5 | 583 | 599.2 | 606.6 | 623 | 644.2 | 655.6 |
BB Height | 307 | 307 | 307 | 311.5 | 311.5 | 311.5 | 311.5 |
BB Drop | 48 | 48 | 48 | 61 | 61 | 61 | 61 |
Chainstay | 430 | 430 | 430 | 455 | 455 | 455 | 455 |
Wheelbase | 1084.5 | 1101.3 | 1118.2 | 1160 | 1177 | 1199 | 1210 |
Standover Height | 649.11 | 663.03 | 706.24 | 716.44 | 744.89 | 773.66 | 806.58 |
Fork Offset | 44 | 44 | 44 | 51 | 51 | 51 | 51 |
Seatpost Diameter | 27.2 | 27.2 | 27.2 | 27.2 | 27.2 | 27.2 | 27.2 |
Handlebar Width | 780 | 780 | 780 | 780 | 780 | 780 | 780 |
Stem Length | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
Crank Length | 170 | 170 | 175 | 175 | 175 | 175 | 175 |
All lengths in millimeters