Ktm Husqvarna 450 490 Big Bore kit explained Thumper Racing Snowbike performance

Brock Buttars explains the Thumper Racing 490 Big Bore kit
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[@adrianmontgomery502]

Super excited to ride this!!

[@leifsutherland3475]

I have the thumper 570. It's a true beast, this is te first yr I'm putting a timbersled on it. It's a torque monster

[@crazybcenduro7536]

A 490 sounds pretty cool but a 450 I’m gonna stick with,awesome vid man!👊✊❄️🏍💨🥶

[@reynaldilhou5038]

Nice tools,😃

[@mxcollin95]

Can you put out a video on how to setup a bike to use NOS? As a life long motocross guy I’ve never seen that.

[@quickvid]

Have you had any issues? I have had 2 of those kits nip up on me at the recommended 2thou piston to bore clearance.

[@wrapformersgraphix2593]

I need that 490

[@davidbolduc-henri7790]

How manny hours a 490 would would last with out nos?

[@jeromewells151]

How much horsepower do you get out of the 490s?