Marin San Quentin 3 Hardtail Mountain Bike - 2026
- Series 3 6061 aluminium frame
- Marzocchi Bomber Z2 fork with 140mm travel
- TRP Slate EVO 4-piston hydraulic brakes
Finance Available*.
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The Marin San Quentin 3 Hardtail Mountain Bike 2026 delivers top-tier trail performance with proven components, strong handling, and trail-ready durability. Its Series 3 aluminium frame, Marzocchi suspension, TRP 4-piston brakes, and Shimano 12-speed drivetrain ensure control, efficiency, and strength across demanding terrain, all while staying within reach of riders who want premium performance without the premium price tag.
Key Features and Benefits:
- Series 3 6061 aluminium frame with double butting and internal cable routing: This advanced tubing design increases strength while trimming excess weight. The result is a frame that offers durability for rough riding without adding unnecessary bulk.
- Marzocchi Bomber Z2 fork with 140mm travel and Boost spacing: The suspension is built with a robust chassis and Kabolt axle for stiffness and control. Riders benefit from precise steering and smooth tracking, which translates into confident handling on technical trails.
- TRP Slate EVO 4-piston hydraulic brakes with 203mm/180mm rotors: The large rotor size and multi-piston design create consistent stopping power. This gives better heat management and control under load, ensuring reliable braking even on steep descents.
- Shimano Deore 12-speed drivetrain with 10-51T cassette: Wide-range gearing allows efficient climbing and speed on flats without compromise. The benefit is smoother gear changes and the outcome is more energy saved over long rides.
- FSA Comet crankset with MegaTooth direct mount chainring: The chainring teeth are designed to grip the chain securely. This prevents drops and improves chain retention, giving uninterrupted power transfer when riding hard.
- Maxxis Assegai 27.5x2.5" tyres with EXO casing, tubeless-ready: The tread pattern and casing balance grip with protection. Riders gain traction and puncture resistance, ensuring control and fewer mid-ride issues.
Performance at this level means more than component choice—it’s about how each part works together. The San Quentin 3 blends a stable alloy frame with tuned suspension and braking for dependable control. Its wide gear range and secure drivetrain mean fewer compromises on climbs and descents alike. Maxxis tyres and tubeless-ready rims further reduce downtime, keeping the bike ready for serious trail use.
The San Quentin 3 gives riders a hardtail designed for aggressive terrain, with parts selected to keep reliability and handling at the core. It is ready to take on long rides and hard trails with the same confidence as higher-priced builds.
Size Guide - Rider height range:
- S - 5'2" to 5'5"
- M - 5'5" to 5'8"
- L - 5'8" to 5'11"
- XL - 5'11" to 6'2"
| Frame | Series 3 6061 Aluminum, Double Butted Frame, Internal Cable Routing, 12x148mm Thru-Axle, 73mm Threaded BB |
| Front Suspension | Marzocchi Bomber Z2, 110x15mm Boost Spacing, 140mm Travel, Kabolt Axle |
| Rims | Marin Aluminum Double Wall, Disc Specific, 29mm Inner, Sleeved Joint, 32H, Tubeless Compatible |
| Hub, Rear | Shimano FH-TC500, 148x12, MicroSpline Freehub Body, Centerlock Disc, 32H |
| Hub, Front | Shimano HB-TC500, 110x15mm |
| Spoke, Nipples | 14g Black Stainless Steel |
| Tires | Maxxis Assegai, 27.5x2.5" MAXX TERRA, EXO Casing, Tubeless Compatible |
| Derailleur, Rear | Shimano Deore, 12-Speed, SGS |
| Shift Lever | Shimano Deore, 12-Speed, SL-7100R |
| Crankset | FSA Comet, Modular 1x, 32T Direct Mount Chainring, MegaTooth Technology, Boost Spacing |
| Bottom Bracket | FSA MegaExo 73mm BSA |
| Chain | KMC X-12 Silver and Black |
| Cassette | SunRace, 12-Speed, MicroSpline, 10-51T |
| Brake, Front | TRP Slate EVO 4-Piston Hydraulic, Resin Pads, 203mm Rotor |
| Brake, Rear | TRP Slate EVO, 4-Piston Hydraulic, Resin Pads, 180mm Rotor |
| Brake Levers | TRP Slate EVO, I-Spec EV Compatible |
| Handlebar | Marin Mini-Riser, 6061 Double Butted Aluminum, 780mm Width, 28mm Rise, 5º Up, 9º Back |
| Stem | Marin 3D Forged Alloy, 35mm |
| Grips | Marin Grizzly Lock On |
| Headset | FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2” |
| Seatpost | TranzX YSP23JL, 1x Remote, Size S 125mm Travel, Size M 150mm, L 170mm Travel, and Size XL 200mm Travel, 30.9mm |
| Saddle | Marin Speed Concept |
| Pedals | Marin Oso OE Flat |
| Colour | Purple Fade |
| Size | L, M, S, XL |
| Wheel Size | 27.5 Inch, 29 Inch |
| Brand | Marin Bikes |
| MPN(s) | 740687001, 740687002, 740688001, 740688002, 740688003 |
Our Payment Options
Online we currently accept payment from the methods listed above including a wide range of finance options. In store we also accept payment in the form of cash and gift vouchers.
Finance Options
In order to get the kit you want, when you need it, we offer a highly flexible range of finance options to help you get the best products on your bike now rather than at the end of the season when you've saved up the cash to make the purchase. There are even interest free options which effectively spread the cost without costing you any extra.
D.T.(Automotives) Limited T/A Tweeks Cycles is authorised and regulated by the Financial Conduct Authority and is the broker and not the lender. Our FCA registration number is 689896. D.T.(Automotives) Limited offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance, Klarna and Clearpay. Credit is provided subject to affordability, age and status. Minimum spend applies. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority. Klarna is unregulated credit. Clearpay is unregulated credit, use responsibly, T&Cs & late fees apply.
Our Finance Providers
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D.T.(Automotives)Limited trading as Tweeks Cycles offer interest free and interest-bearing credit on purchases £300 and over which is provided by V12 Retail Finance.
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We also offer Klarna, pay now, pay in 30 days or pay in 3 equal instalments.
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We also offer Clearpay pay in 4 instalments.
UK Mainland Delivery Prices
| Delivery Type | Cost | Estimated Delivery Time |
| Standard Delivery for orders under £49.99 | from £1.33 | 2-3 working days from day of despatch(Excludes weekends and Bank Holidays) |
| Standard Delivery for orders over £49.99 | Free | |
| Bike Delivery | Free | 3-5 working days from day of despatch *(Excludes weekends and Bank Holidays) |
| Express Delivery | from £1.68 | 1-2 working days from day of despatch(Excludes weekends and Bank Holidays) |
| Special Delivery | from £12.54 | For any next working day delivery order before 4.30pm Monday to Thursday. For any weekend delivery order before 4.30pm Friday |
* Bike Delivery Info
A bike has to go though a Pre Delivery Inspection (PDI Check) prior to despatch, ensuring the bike is thoroughly checked and set up prior to you receiving. This also means an express delivery service is unavailable. We strive to despatch bikes within 3-5 working days. Please note this may change over school holidays and the festive season (November/December). For more information on the process please visit our pre-build page.
For international shipping please visit our delivery page.
For information about returning an item please visit our returns page.