Bike Comparison
    MSRP
    $1,799
    Where to Buy
    $1

    At

    $1,799

    At Trek

    $1,799

    At Biloxi Bicycle Works

    Category
    GravelGravel
    Weight
    21.6 lbs21.6 lbs
    3.7
    3.0
    AluminumAluminum
    Fork
    CarbonCarbon
    Wheels
    AluminumAluminum
    Wheel Size
    700c700c
    Brakes
    Hydraulic DiscMechanical Disc
    Groupset
    105Apex
    Drivetrain
    2 × 111 × 11
    Brand Site

    evanscycles.com

    trekbikes.com

    Summary
    The Pinnacle Arkose R2 is an aluminum frame gravel bike with upper mid-range components and hydraulic disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    2025 Checkpoint ALR 4
    Other Gravel bikes
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    31 mph

    2025 Checkpoint ALR 4

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    Frame

    6013-T6 heat treated alloy, w/Triple butted top tube, down tube & smooth welds. 3 x bottle cage mounts, Internal cable routing for mechanical and Di2, interchangeable dropout & rack/mudguard mounts.

    BB StandardBSA, 68mm, Threaded

    300 Series Alpha Aluminum, tapered head tube, Internal cable routing, 3S chain keeper, T47 BB, rack and fender mounts, integrated frame bag mounts, flat mount disc, 142x12mm thru axle

    BB StandardBSA, 68mm, Threaded

    Fork

    Full carbon fork and steerer w/flat mount, mudguard mounts & dynamo routing

    Checkpoint, full carbon, tapered carbon steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle

    Bottom Bracket

    Shimano RS500 BSA thread

    SRAM DUB, T47 threaded, internal bearing

    Headset

    FSA Orbit C-40-ACB, No.42

    Stem

    Pinnacle alloy road, +/- 7 degree, S - 90mm, M - 100mm, L - 110mm, XL - 120mm

    Size: 49, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length; Size: 52, 54, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: 56, 58, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: 61, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length

    Handlebar

    Pinnacle 6061 alloy road bar,118mm drop, 70mm reach, S/M - 420mm, L/XL - 440mm

    Size: 49, Bontrager Elite Gravel, 38cm width; Size: 52, Bontrager Elite Gravel, 40cm width; Size: 54, 56, Bontrager Elite Gravel, 42cm width; Size: 58, 61, Bontrager Elite Gravel, 44cm width

    Saddle

    Pinnacle men's road

    Size: 49, 52, Bontrager Verse Comp, steel rails, 155mm width; Size: 54, 56, 58, 61, Bontrager Verse Comp, steel rails, 145mm width

    Seatpost

    Pinnacle aluminium 350mm x 27.2mm

    Bontrager alloy, 27.2mm, 12mm offset, 330mm length

    Pedals

    Not Supplied

    Groupset
    Rear Derailleur

    Shimano 105 R7000 GS 11 speed

    SRAM Apex 1, long cage, 42T max cog

    Front Derailleur

    Shimano 105 R7000 30.9mm band on

    Crank

    Size: 49, SRAM Apex 1, 40T, DUB Wide, 165mm length; Size: 52, SRAM Apex 1, 40T, DUB Wide, 170mm length; Size: 54, 56, SRAM Apex 1, 40T, DUB Wide, 172.5mm length; Size: 58, 61, SRAM Apex 1, 40T, DUB Wide, 175mm length

    Shifters

    Shimano 105 R7000 11 speed

    SRAM Apex, 11 speed

    Cassette

    Shimano 105 R7000 11 speed 11-32T

    SRAM PG-1130, 11-42, 11 speed

    Chain

    KMC X11

    SRAM PC-1130, 11 speed

    Brakes

    Shimano 105 R7000 hydraulic discs w/RT70 160mm rotors

    Tektro C550 mechanical disc brake, dual piston, flat mount

    Wheels
    Rims

    WTB ST i19 TCS 700c 32 hole, pinned, tubeless ready

    Bontrager Paradigm, Tubeless Ready, 24-hole, 21mm width, Presta valve

    Spokes

    14g stainless steel, black

    Front Hub

    Novatec 32H 2 sealed bearing 12 x 100mm

    Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle

    Rear Hub

    Novatec 32H 5 sealed bearing 12 x 142mm

    Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle

    Tires

    WTB Exposure 30c TCS Distance +

    Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40mm

    Disc Rotors

    Tektro, centerlock, 160mm

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