MARIN SAN QUENTIN 27.5" 2 HARDTAIL MTB BIKE 2025 BLUE/BLACK

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Product Details - Marin San Quentin 27.5" 2 Hardtail Mtb Bike 2025 Blue/black

The San Quentin 2 is our mid-pack model that blends bang-for-your-buck value with kick-ass components.

We’ve packed in a TranzX dropper post, an RockShox suspension fork, Shimano brakes and drivetrain, Vee Tire rubber and plenty of awesome Marin kit to create a bike you’ll love to rip, but that won’t shred your budget.

Key Upgrades from the San Quentin 1

  • Series 3 aluminum frame w/12x148mm thru axle
  • X-Fusion Sweep Boost RC w/ 140mm travel
  • Shimano Deore wide range 1x 11-speed drivetrain
  • Tektro four piston hydraulic disc brakes

Key Features

  • Series 3 Aluminium frame: More advanced tube forming, more complex dropouts, post mount disc tabs, full internal cable routing, and a boost 148mm thru-axle model, and San Quentin 2 and 3 have full internal cable routing, and a boost 148mm thru-axle.
  • Dirt Jump Frame Style: Taking cues from the Alcatraz, the San Quentin line up provides all the benefits of the DJ style with massive stand over, slick frame tubes, and a sexy paint job.
  • Powerful Disc brakes: For minimal maintenance and all-conditions stopping power.

Full Specification 

    • Frame: All New Series 3 6061 Aluminium, Double Butted Frame, Internal Cable Routing, 12x148mm Thru-Axle, 73mm Threaded BB
    • Fork: RockShox FS35 Silver, 110x15mm Boost Spacing, 140mm Travel, Maxle Stealth
    • Shifters: Shimano Deore, 11-Speed, SL-5100R
    • Crankset: Marin Forged Alloy, Integrated Steel 32T Narrow Wide Chainring, Boost Spacing
    • Cassette: SunRace, 11-Speed, 11-51T, ED Black
    • Chain: KMC X-11 Silver and Black
    • Front Derailleur: N/A
    • Rear Derailleur: Shimano Deore, 11-Speed, SGS
    • Bottom Bracket: Sealed Cartridge Bearings, Square Taper
    • Pedals: Nylon Platform
    • Rims: Marin Aluminium Double Wall, Disc Specific, 29mm Inner, Pinned Joint, 32H, Tubeless Compatible
    • Front Hub: Shimano HF-MT400B, 110x15mm, Disc
    • Rear Hub: Shimano HF-MT400B, 110x15mm, Disc
    • Tyres: Vee Tire Co, Flow Snap, 27.5x2.6", MPC Compound, Wire Bead
    • Brakes: Shimano BR-MT201 Hydraulic Disc Brake, 180mm Rotor
    • Handlebar Grips: Marin MTB, Closed End
    • Handlebar: Marin Mini-Riser, 6061 Double Butted Aluminium, 780mm Width, 28mm Rise, 5º Up, 9º Back
    • Headset: FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
    • Stem: Marin 3D Forged Alloy, 35mm
    • Saddle: Marin Speed Concept
    • Seatpost: TranzX, YSP18, 1x Remote, Size S 125mm Travel, Size M-XL 150mm Travel, 30.9mm
    • Accessories: N/A

    Size Guide for Marin San Quentin

    Size Rider Height
    S 5'2" - 5'5"
    M 5'5" - 5'8"
    L 5'8" - 5'11"
    XL 5'11" - 6'2"

    We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

    Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.

    How we Build & Pack Your Bike

    Aftercare

    At All Terrain Cycles, we want you to ride with confidence every time. To ensure your bike or e-bike stays in peak condition, here are some essential safety and maintenance tips.

    Bicycle Safety 

    Always wear a helmet – Safeguard against head injuries by using a properly fitted, safety-certified helmet.

    Perform pre-ride checks – Before each ride, verify that brakes, tyres, and gears are in good working order.

    Stay visible – Utilise lights and reflective gear when cycling in low-light conditions.

    Follow road rules – Ride responsibly and remain aware of your surroundings.

    Aftercare for Your New Bike Initial Check-Up (First 50-100 miles)

    Gear Adjustment – New cables may stretch slightly; have a qualified mechanic check and adjust them.

    Brake & Wheel Check – Inspect brakes for wear and ensure wheels are aligned properly.

    Lubrication – Apply chain oil and check bolt tightness to maintain smooth performance.

    Tyre Pressure – Regularly monitor to prevent flats and enhance efficiency.

    Pedals - Ensure pedals are still tight and correctly fitted.

    Routine Maintenance (Every Few Weeks)

    Chain Care – Clean and lubricate your chain to minimise wear and prolong its life.

    Brake Safety – Check brake pads and responsiveness before each ride.

    Tyre Inspection – Look for punctures and ensure correct air pressure.

    Handlebar & Stem Alignment – Confirm they are tight and secure to prevent instability.

    Frame Safety Check – Look for any signs of damage or cracks.

    Pedals - Ensure pedals are still tight and correctly fitted.

    Professional Check-Ups

    Have your bike serviced at least once a year, or more frequently if you ride often.

    Aftercare for Your New Electric Bicycle (e-Bike) Initial Check-Up (First 50-100 miles)

    Battery Care – Fully charge your battery (if required) before the first ride and store it in a dry, moderate-temperature environment.

    Avoid Overcharging – Unplug the charger once fully charged to extend battery life.

    Pedals - Ensure pedals are still tight and correctly fitted.

    Routine e-Bike Maintenance (Every Few Weeks)

    Motor Inspection – Listen for unusual noises and ensure smooth operation.

    Battery & Connection Checks – Inspect cables and connectors for dirt, moisture, or damage.

    Pedals - Ensure pedals are still tight and correctly fitted.

    Seasonal e-Bike Maintenance

    Check Electrical Components – Ensure wires and connections are clean and secure.

    Professional Servicing – Have your e-bike inspected at least once a year or every 500-1000 miles for optimal performance.

    By following these aftercare guidelines, you’ll help ensure that your bicycle runs smoothly, lasts longer, and remains a joy to ride. Stay safe and enjoy the ride!

    Read our full advice

    If you have any problems or concerns: Contact All Terrain Customer Services on 01274 588488 or email sales@allterraincycles.co.uk

    MARIN SAN QUENTIN 27.5" 2 HARDTAIL MTB BIKE 2025 BLUE/BLACK
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    Regular price £1,249.00
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    • SKU: 735954001
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    Built by Cytech Mechanics
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    Product Description

    The San Quentin 2 is our mid-pack model that blends bang-for-your-buck value with kick-ass components.

    We’ve packed in a TranzX dropper post, an RockShox suspension fork, Shimano brakes and drivetrain, Vee Tire rubber and plenty of awesome Marin kit to create a bike you’ll love to rip, but that won’t shred your budget.

    Key Upgrades from the San Quentin 1

    • Series 3 aluminum frame w/12x148mm thru axle
    • X-Fusion Sweep Boost RC w/ 140mm travel
    • Shimano Deore wide range 1x 11-speed drivetrain
    • Tektro four piston hydraulic disc brakes

    Key Features

    • Series 3 Aluminium frame: More advanced tube forming, more complex dropouts, post mount disc tabs, full internal cable routing, and a boost 148mm thru-axle model, and San Quentin 2 and 3 have full internal cable routing, and a boost 148mm thru-axle.
    • Dirt Jump Frame Style: Taking cues from the Alcatraz, the San Quentin line up provides all the benefits of the DJ style with massive stand over, slick frame tubes, and a sexy paint job.
    • Powerful Disc brakes: For minimal maintenance and all-conditions stopping power.

    Full Specification 

      • Frame: All New Series 3 6061 Aluminium, Double Butted Frame, Internal Cable Routing, 12x148mm Thru-Axle, 73mm Threaded BB
      • Fork: RockShox FS35 Silver, 110x15mm Boost Spacing, 140mm Travel, Maxle Stealth
      • Shifters: Shimano Deore, 11-Speed, SL-5100R
      • Crankset: Marin Forged Alloy, Integrated Steel 32T Narrow Wide Chainring, Boost Spacing
      • Cassette: SunRace, 11-Speed, 11-51T, ED Black
      • Chain: KMC X-11 Silver and Black
      • Front Derailleur: N/A
      • Rear Derailleur: Shimano Deore, 11-Speed, SGS
      • Bottom Bracket: Sealed Cartridge Bearings, Square Taper
      • Pedals: Nylon Platform
      • Rims: Marin Aluminium Double Wall, Disc Specific, 29mm Inner, Pinned Joint, 32H, Tubeless Compatible
      • Front Hub: Shimano HF-MT400B, 110x15mm, Disc
      • Rear Hub: Shimano HF-MT400B, 110x15mm, Disc
      • Tyres: Vee Tire Co, Flow Snap, 27.5x2.6", MPC Compound, Wire Bead
      • Brakes: Shimano BR-MT201 Hydraulic Disc Brake, 180mm Rotor
      • Handlebar Grips: Marin MTB, Closed End
      • Handlebar: Marin Mini-Riser, 6061 Double Butted Aluminium, 780mm Width, 28mm Rise, 5º Up, 9º Back
      • Headset: FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
      • Stem: Marin 3D Forged Alloy, 35mm
      • Saddle: Marin Speed Concept
      • Seatpost: TranzX, YSP18, 1x Remote, Size S 125mm Travel, Size M-XL 150mm Travel, 30.9mm
      • Accessories: N/A

      Size Guide for Marin San Quentin

      Size Rider Height
      S 5'2" - 5'5"
      M 5'5" - 5'8"
      L 5'8" - 5'11"
      XL 5'11" - 6'2"

      We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

      Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.

      How to Build Your Bike

      Aftercare

      At All Terrain Cycles, we want you to ride with confidence every time. To ensure your bike or e-bike stays in peak condition, here are some essential safety and maintenance tips.

      Bicycle Safety 

      Always wear a helmet – Safeguard against head injuries by using a properly fitted, safety-certified helmet.

      Perform pre-ride checks – Before each ride, verify that brakes, tyres, and gears are in good working order.

      Stay visible – Utilise lights and reflective gear when cycling in low-light conditions.

      Follow road rules – Ride responsibly and remain aware of your surroundings.

      Aftercare for Your New Bike Initial Check-Up (First 50-100 miles)

      Gear Adjustment – New cables may stretch slightly; have a qualified mechanic check and adjust them.

      Brake & Wheel Check – Inspect brakes for wear and ensure wheels are aligned properly.

      Lubrication – Apply chain oil and check bolt tightness to maintain smooth performance.

      Tyre Pressure – Regularly monitor to prevent flats and enhance efficiency.

      Pedals - Ensure pedals are still tight and correctly fitted.

      Routine Maintenance (Every Few Weeks)

      Chain Care – Clean and lubricate your chain to minimise wear and prolong its life.

      Brake Safety – Check brake pads and responsiveness before each ride.

      Tyre Inspection – Look for punctures and ensure correct air pressure.

      Handlebar & Stem Alignment – Confirm they are tight and secure to prevent instability.

      Frame Safety Check – Look for any signs of damage or cracks.

      Pedals - Ensure pedals are still tight and correctly fitted.

      Professional Check-Ups

      Have your bike serviced at least once a year, or more frequently if you ride often.

      Aftercare for Your New Electric Bicycle (e-Bike) Initial Check-Up (First 50-100 miles)

      Battery Care – Fully charge your battery (if required) before the first ride and store it in a dry, moderate-temperature environment.

      Avoid Overcharging – Unplug the charger once fully charged to extend battery life.

      Pedals - Ensure pedals are still tight and correctly fitted.

      Routine e-Bike Maintenance (Every Few Weeks)

      Motor Inspection – Listen for unusual noises and ensure smooth operation.

      Battery & Connection Checks – Inspect cables and connectors for dirt, moisture, or damage.

      Pedals - Ensure pedals are still tight and correctly fitted.

      Seasonal e-Bike Maintenance

      Check Electrical Components – Ensure wires and connections are clean and secure.

      Professional Servicing – Have your e-bike inspected at least once a year or every 500-1000 miles for optimal performance.

      By following these aftercare guidelines, you’ll help ensure that your bicycle runs smoothly, lasts longer, and remains a joy to ride. Stay safe and enjoy the ride!

      Read our full advice

      If you have any problems or concerns: Contact All Terrain Customer Services on 01274 588488 or email sales@allterraincycles.co.uk