Transition Sentinel Mountain Bike Collection

Transition Sentinel

Filter

    Our best-selling Transition is the perfect bike for most UK riding. 29" wheels at both ends and the sweet spot 160/150 mm of front/rear travel. Available specs cover carbon and alloy models, with SRAM NX or GX drivetrains available on the alloy version.

    • Collet main pivot axle and Enduro MAX bearings.
    • Accessory mount.
    • Lifetime warranty for original owner.
    • Flush mounted rubber frame protection.
    • Short seat tube with lots of insertion room to accommodate longer dropper posts.
    • 2.6" tyre clearance.
    • Carbon frame features internal cable routing with guides.
    • Threaded BB - Boost axles - SRAM UDH (Universal Derailleur Hanger).

    Custom Build Your Transition Sentinel

    Let us build your dream Transition Sentinel

    We specialize in custom-built enduro bikes! There is no need to compromise on the build of your new Transition Sentinel. We can do everything from a completely bespoke bike built to your exact specification to just changing the grips.You might be surprised by how reasonably priced your dream bike could be, and using the Cycle To Work Scheme is available as a payment option.

    Get In Touch

    Transition Sentinel Geometry & Sizing

    20Twenty Bike Geometry
    Transition Sentinel Geometry
    Sizes in MM S M L XL XXL
    A: Stack 613 622 631 640 649
    B: Reach 420 450 476 501 521
    C: Head Tube
    Angle
    63.6° 63.6° 63.6° 63.6° 63.6°
    D: Head Tube
    Length
    100 110 120 130 140
    E: Effective
    Seat Tube Angle
    78.2° 77.5° 76.9° 76.4° 76.0°
    F: Seat Tube
    Length
    350 390 430 460 490
    G: Effective
    Top Tube
    552 585 613 641 665
    H: BB Height 346 346 346 347 347
    I: BB Drop 29 29 29 29 29
    J: Chainstay Length 440 440 440 440 440
    K: Wheelbase 1199 1233 1263 1292 1316
    L: Standover 671 688 700 712 722
    M: Fork Offset 44 44 44 44 44
    Seatpost Diameter 31.6 31.6 31.6 31.6 31.6


     

    Transition Bikes Sizing Chart