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Description
Marin Bolinas Ridge 27.5The Bolinas Ridge series is perfectly suited for recreational riders wishing to explore singletrack and dirt trails with a mountain bike built for real trails. The Bolinas Ridge 1 is built around a Series 1 6061 aluminum frame with a replaceable derailleur hanger and an integrated headset. Specd with a trail munching 100mm travel SR Suntour XCE suspension fork, all conditions low maintenance Power CX7 mechanical disc brakes, durable double wall rims,
The Bolinas Ridge series is perfectly suited for recreational riders wishing to explore singletrack and dirt trails with a mountain bike built for real trails. The Bolinas Ridge 1 is built around a Series 1 6061 aluminum frame with a replaceable derailleur hanger and an integrated headset. Spec’d with a trail munching 100mm travel SR Suntour XCE suspension fork, all-conditions low maintenance Power CX7 mechanical disc brakes, durable double wall rims, serviceable cassette freehubs and a trail proven 3x7 speed Shimano Tourney drivetrain. The Bolinas Ridge has a growing wheel size for the best fit and performance for all rider heights, with sizes XS, SM and MD fitted with 27.5” wheels and 29” platforms on sizes MD, LG, and XL.
- 6061 alloy frame with trail focused geometry
- 100mm travel SR Suntour XCE front fork
- Power CX7 mechanical disc brakes
- 3x7 speed Shimano Tourney drivetrain
- XS, SM and MD fitted with 27.5” wheels
- MD, LG and XL fitted with 29” wheels
| Bottom bracket: | Sealed Cartridge Bearings, Square Taper |
|---|---|
| Brakes: | Power CX7 Mechanical Disc, Shimano Pad Compatible |
| Chain: | KMC Z-8.3 |
| Crankset: | Alloy Crank, Steel Chainrings, 42/34/24T |
| Derailleur rear: | Shimano Tourney, 7-Speed |
| Fork: | SR Suntour XCE Disc, 100mm Travel, Preload Adjustment, 46mm Offset |
| Frame: | Series 1 6061 Aluminum, 27.5”/29" Wheels, Low Standover, 68mm BB shell, 135mm Forged Dropouts |
| Freewheel: | SunRace 7-Speed, 11-34T Cassette |
| Grip: | Marin MTB, Closed End |
| Handlebar: | Marin 31.8 Riser, 12mm Rise, 780mm Width |
| Handlebar stem: | Marin Alloy, 31.8mm, 45mm |
| Headset: | FSA No.10-P |
| Hubs: | Forged Alloy, 32H |
| Pedals: | Nylon Platform |
| Rim: | Marin, Double Wall Alloy |
| Rotor front: | 160mm Rotor |
| Rotor rear: | 160mm Rotor |
| Saddle: | Marin MTB |
| Season: | 2022 |
| Seat post: | Marin Alloy, 27.2mm |
| Spokes: | 14g Black Stainless Steel |
| Tyre front: | MTB, 27.5" x 2.25" on sizes XS,SM,MD, 29" x 2.25" on sizes LG,XL,XXL |
| Tyre rear: | MTB, 27.5" x 2.25" on sizes XS,SM,MD, 29" x 2.25" on sizes LG,XL,XXL |
| Wheel size: | 27.5" (650b) |
| XS / 13" | S / 15" | M (27.5) / 17" | M (29) / 17" | L / 19" | XL / 20.5" | XXL / 22" | |
|---|---|---|---|---|---|---|---|
| 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 | 46 | 46 | 46 | 46 | 46 | 46 | 46 |
| 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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Love them!
Color: White-cooling Basic, Size: Queen(Pack of 2)
Love them! After 10 years with our MyPillows, they finally lost their fluff. The reviews I read of the MyPillows of today were not good; they didn’t have as much filling as they used to. These pillows remind me of how fluffy our new MyPillows were 10 years ago!! You sink right into them and can mush them however and they stay. These are way cheaper than the Coop and it’s the same concept; add or remove the filling as needed. The cooling side is a huge plus too! You won’t be disappointed with these pillows!
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Great pillow, but the cooling effect depends on the cover
Color: Blue-ice Plus, Size: King(Pack of 2)
I really like this pillow overall. It’s comfortable, supportive, and feels well made. When you use it without a pillowcase, it definitely feels cool to the touch and does what it claims in terms of that initial cooling sensation.
However, once you put a pillowcase on it, you can’t really feel the cooling effect anymore. I’ve tried multiple different pillowcases made from different materials, and none of them really let that cool feeling come through.
That said, I still love the pillow itself. It’s comfortable and supportive enough that I’m keeping it. Just keep in mind that the cooling feature works best without a cover, which isn’t ideal for everyone.
Overall, a good pillow — just manage expectations about the cooling effect once it’s covered.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Cooling and holds shape.
Color: Blue-ice Plus, Size: Queen(Pack of 2), Color: Blue-ice Plus, Size: Queen(Pack of 2)
Very nice pillow for the price is also holding up well and holding shape very cool and comfortable to the touch. Best pillow I found in a long time.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Best Pillow Ever
Color: Blue-ice Plus, Size: Queen(Pack of 2)
Best pillow ever. Although it still gets "hot", it does take longer to get "hot". I love this pillow. I was buying a new pillow almost every 3 months. Other pillows would either remain rock hard or go flat. I was concerned at first when reading the description as I though the memory foam would be big pieces. They are soft fluffy pieces. I had to remove almost half of the foam to get the pillow to what works for me. I have not had to put any filler back in. Maybe in a couple of more months I may have to put a bit more in, but it is holding it's shape and not going flat. I do fluff it every night. This helps. I am a stomach sleeper. I have bought the expensive purple pillow and hated it so much I gave it to my daughter. This QUTOOL Pillow is the best! I bought a 2 pack. Have not used the other pillow yet, but I feel I may actually go years for once without having to buy a pillow as I have the 2nd one set aside if the first one gets to a point in need replacement. I have bought Dollar Store pillows. I have bought $300 pillows. None of them even come close to this pillow and the way you can adjust this pillow for you. The pillows came in a white mesh like bag. I keep all the unused "stuffing" in this bag. I have it hanging in my closet and I just fluff the bag once a month to keep the filling fresh so it is ready if and when I need it. Coming from someone who has trouble staying asleep, neck issues, a stomach sleeper who hate those flat pillows manufacturers think stomach sleepers like but actually hate, buy this pillow. Just buy it. Best Pillow for a picky person like me. Buy 2 or more so if you have to stay at a hotel, you can take your own pillow.
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Reviewed in the United States on June 15, 2025
★★★★★ 4
Slippery Pillow
Color: Blue-ice Plus, Size: Queen(Pack of 2)
Nice and cooling but it’s so slick my pillow sheet doesn’t want to stay on.
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Reviewed in the United States on May 14, 2026