wonder why KTM no longer offers these in the modern range . They look the part mounted to the unique 390 Adventure handlebars as a nice bonus . The rest of the build-out is completely made up of official KTM Powerparts products available to the public , with the spoked wheels the most recent ( and expensive ) addition to the official 390 Adventure parts book of bling . In fact , the set of rims on the Boyd ’ s 390 were specially shipped to New Zealand ahead of the KTM Adventure Rallye to help ensure Greg and the 390 could tackle even the toughest breakout along the route . Yep , perhaps the biggest performance improvement to the 390 is its new replacement wheels , which are not only tougher in the rough stuff they also reduce unsprung weight to the tune of 2 kilograms . The new wheels are a direct replacement for the standard cast alloy wheels , which means the slightly more roadoriented 19-inch and 17-inch sizing remains , which may disappoint those hoping to see a more off-road focused 21 / 18-inch combo . But the bonus is there are no issues with fitting or changes in geometry .
Wrapping the new rolling stock is a Bridgestone AX41 front tyre in 100 / 90-19in sizing , while out back a 120 / 90-17in Pirelli MT21 which provides more than enough forward thrust according to Greg . Continuing on the performance theme , while the 390 ’ s lightweight and 43hp is already top of the compact adventure class , the Boyd ’ s team knew they could squeeze more speed out of the 390 . A stylish Akrapovic exhaust slipped on in place of the factory muffler , dropping weight and adding a throaty burble to give the 373cc single-cylinder a tad more presence amongst its twin-cylinder siblings . As the saying goes , power is nothing without control , and helping keep the 390 in the meat of the powerband is a KTM quickshifter . While Greg isn ’ t shy about his short inseam , he and the team decided that in order to really help unlock the off-road potential of the 390 the ergonomics would need to be addressed . The factory twin-seat setup is great for touring , but it soon found itself on the workshop floor replaced by KTM ’ s one-piece replacement , which not only raises seat height but also improves ergonomics for off-roading .
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