Bike Check: 2026 KTM 450 SX-F + MTN.TOP TRKSTR 126

BUILD OVERVIEW

Bike: 2026 KTM 450 SX-F

Snowbike kit: MTN.TOP TRKSTR 126 × 3¼

Riding area: Island Park, Idaho

Owner / builder: Allen Mangum

ALLEN ON THE BUILD

I like using KTM motorcycles as snowbikes for a reason. They are the easiest motorcycles to work on and have the most available snowbike-specific aftermarket products.

My bike is built as a dedicated snowbike. I do not switch it back to dirt.

It is built as an MTN.TOP Certified Snowbike. This is the snowbike recipe I find most functional, with all the right products I enjoy. It also has mild performance modifications that give it a more aggressive powerband.

These are the things that make my snowbike a more enjoyable machine.

Allen Mangum's 2026 KTM 450 SX-F snowbike with an MTN.TOP TRKSTR 126 in the Island Park backcountry

MODS AND UPGRADES

• All aftermarket kit accessories offered by MTN.TOP

• C3 PowerSports handlebar and heat-management products

• Seat Concepts

• ProMoto Built

• P3 Carbon

• Air Force Velocity

• RP Race Exhaust with C3-tuned ECU

• Western Power Sports (WPS)

• Custom graphics, skid plate and cold-weather panels

Allen Mangum riding a 2026 KTM 450 SX-F with an MTN.TOP TRKSTR snowbike kit near Island Park, Idaho

Allen putting the dedicated KTM 450 SX-F + MTN.TOP TRKSTR build to work near Island Park, Idaho.

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