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 We're Off the Grid (Temporarily) — Back October 15, 2025 ️


Webstore Closed While We Ride Europe!


Hey Selkirk fam,
We're pressing pause on our webstore through October 15, 2025—and for good reason.  Marc & Monica are trading Snowbikes for ADV Bikes and chasing a dream that’s been revving in the background for years: a two-wheeled road trip through Europe.


This isn’t just any trip. We’re talking about epic scenery and legendary roads. First, we hit Germany—a proper moto launch pad. Then it’s up to The Netherlands, for the unexpected gems: winding dike roads, medieval towns stitched together with scenic detours, and just enough curves to keep us leaning and grinning. From there, we’re winding through Scotland’s jaw-dropping North Coast 500, past lochs, cliffs, and a few sheep-dodging moments. Oh, and castles. Lots of castles. Some ancient, some haunted, all badass.


We’ll then cruise through the UK countryside, making our way to the iconic Isle of Man for the 2025 TT Races, the ultimate celebration of speed, courage, and throttle control.


While we're out there making memories, we won’t be fulfilling orders. Our webstore will be offline until October 15, but we’ll still be active—sharing photos, stories, and pit stops from the road. You’ll find it all on @selkirksmx, where we’ll be keeping the community looped in on every twist, turn, and castle climb.


We know it’s a bit of a shift, but this adventure fuels the same spirit that drives Selkirk SMX—freedom, grit, and a bit of madness. We’ll come back with fresh perspectives, new ideas, and maybe a few more stickers on the panniers.


Thanks for riding with us, literally and figuratively. We’ll see you this fall with even more to fuel your winter rides.


Stay wild!
Marc & Monica




Radiator Caps

  • Radiator Cap Black 16 Psi Radiator Cap Black 16 Psi

    Radiator Cap Black 16 Psi

    Features: High quality replacement radiator caps Meets or exceeds OEM specifications Fits most all powersport application: Street, Off road, ATV and Snowmobile Verify cooling system pressure requirements prior to ordering
    $32.95
  • Radiator Cap Zinc 16 Psi

    Radiator Cap Zinc 16 Psi

    Features: High quality replacement radiator caps Meets or exceeds OEM specifications Fits most all powersport application: Street, Off road, ATV and Snowmobile Verify cooling system pressure requirements prior to ordering
    $32.95
  • Radiator Cap Black 23 Psi

    Radiator Cap Black 23 Psi

    Features: High quality replacement radiator caps Meets or exceeds OEM specifications Fits most all powersport application: Street, Off road, ATV and Snowmobile Verify cooling system pressure requirements prior to ordering
    $32.95
  • Radiator Cap 20lb   1.4 Bar (Hon/Kaw/Suz/Yam)

    Radiator Cap 20lb 1.4 Bar (Hon/Kaw/Suz/Yam)

    Features: Made from the best materials like the stainless shell, and accurate spring rating for repeatability at the correct pressure High pressure equates to higher boiling point for the coolant Higher coolant pressures also transfer heat from the...
    MSRP: $34.95
    $18.99
  • Radiator Cap 29lb   2.0 Bar (Hon/Kaw/Suz/Yam)

    Radiator Cap 29lb 2.0 Bar (Hon/Kaw/Suz/Yam)

    Features: Made from the best materials like the stainless shell, and accurate spring rating for repeatability at the correct pressure High pressure equates to higher boiling point for the coolant Higher coolant pressures also transfer heat from the...
    MSRP: $38.95
    $21.99
  • Radiator Cap 29lb   2.0 Bar (Ktm/Husky/Gas Gas/Tm) CV715-31MK

    Radiator Cap 29lb 2.0 Bar (Ktm/Husky/Gas Gas/Tm) CV715-31MK

    Features: Made from the best materials like the stainless shell, and accurate spring rating for repeatability at the correct pressure High pressure equates to higher boiling point for the coolant Higher coolant pressures also transfer heat from the...
    MSRP: $40.95
    $21.99
  • Radiator Cap 29lb   2.0 Bar (Ktm/Husky/Gas Gas/Tm)

    Radiator Cap 29lb 2.0 Bar (Ktm/Husky/Gas Gas/Tm)

    Features: Made from the best materials like the stainless shell, and accurate spring rating for repeatability at the correct pressure High pressure equates to higher boiling point for the coolant Higher coolant pressures also transfer heat from the...
    MSRP: $38.95
    $25.99
  • Radiator Cap 1.8 Bar Hon/Kaw/Suz/Yam

    Radiator Cap 1.8 Bar Hon/Kaw/Suz/Yam

    Features: Twin Air has added high-pressure radiator caps to its product line of on and off-road motorcycles products and accessories. Higher pressure 2.0 cap replaces the OEM radiator caps and reduces loss of coolant due to overheating. Higher pressure...
    $36.95
  • Radiator Cap 2.0 Bar Hus/Ktm

    Radiator Cap 2.0 Bar Hus/Ktm

    Features: Twin Air has added high-pressure radiator caps to its product line of on and off-road motorcycles products and accessories. Higher pressure 2.0 cap replaces the OEM radiator caps and reduces loss of coolant due to overheating. Higher pressure...
    $36.95
  • Radiator Cap 2.0 Bar Hus/Ktm/Gas

    Radiator Cap 2.0 Bar Hus/Ktm/Gas

    Features: Twin Air has added high-pressure radiator caps to its product line of on and off-road motorcycles products and accessories. Higher pressure 2.0 cap replaces the OEM radiator caps and reduces loss of coolant due to overheating. Higher pressure...
    $36.95
  • Radiator Cap 2.0 Bar Hon/Kaw/Suz/Yam

    Radiator Cap 2.0 Bar Hon/Kaw/Suz/Yam

    Features: Twin Air has added high-pressure radiator caps to its product line of on and off-road motorcycles products and accessories. Higher pressure 2.0 cap replaces the OEM radiator caps and reduces loss of coolant due to overheating. Higher pressure...
    $36.95