The 2019 KTM SX-F lineup of Supercross and Motocross racing four-stroke motorcycles is out, and there are plenty of changes across the range. The 450 SX-F, 350 SX-F, and 250 SX-F share many common changes, along with some model specific changes.Let’s break it down into bite-sized chunks for easy digestion.
Changes common to the 2019 KTM 450 SX-F, KTM 350 SX-F, and KTM 250 SX-F
Stiffer frame and triple clamp for more straight line stability
Updated suspension settings to enhance the stiffer frame
WP shock gets redesigned main piston
Longer subframe to support the rear fender
Longer axle slot in the swingarm to extend wheelbase for more stability
New airbox has intake snorkels to increase airflow while directing dirt from the filter
New Flow Design Header resonator system
New muffler design allows servicing without removing the rear shock; shock access also improved
Traction control and launch control settings revised for increased traction
New fuel tank with a 1.85-gallon capacity, and improved internal hose routing to enhance reliability
New brackets for installing a skid plate
New bodywork to allow easier movement on the motorcycle
New seat designed to be more comfortable
New bar pad has improved mounting
New nipple design on wheels for reduced maintenance
Lighter lithium-ion battery with additional starting power
More compact wiring harness
Cable routing for Keihin 44mm throttle body improved • New plastic plug-in side-stand doubles as fork spacer during transport
Changes to the 2019 KTM 450 SX-F
New SOHC cylinder head—lighter, more compact
New five-speed transmission, though gear ratios are unchanged
New cam with shorter valve timing and improved surface for faster throttle response
DLC coating on chain guide for increased reliability
Aprilia Tuono 660 Factory + Steve ’Stavros’ Parrish
byMotos and Friends by Ultimate Motorcycle
Hello everyone and welcome once again to Ultimate Motorcycling’s weekly podcast—Motos and Friends. My name is Arthur Coldwells.
Our first segment features the new Aprilia Tuono 660 Factory. Senior Editor Nic de Sena brings us his report on the flagship version of Aprilia’s upright middleweight machine. He gives us insight into whether it’s worth spending the extra money on the Factory version, and also of course, whether this sporting Aprilia is really the motorcycle for you.
The next guest segment of Motos and Friends is brought to you by the faster and most technologically advanced, 2023 Suzuki Hayabusa—one of the most iconic sportbikes ever. Check it out in person at your local Suzuki dealer now, or visit suzukicycles.com to learn more.
In this segment, Associate Editor Teejay Adams chats with (arguably) one of the most interesting Suzuki race riders of all time. the iconic RG500 alongside teammate double World Champion Barry Sheene. The two were almost as famous for their exploits off-track, as for their success on it. Those were the days! Steve also raced the Isle of Man TT for about ten years where he won 13 Silver Replicas, and got a podium finish. His insight into that particular brand of mayhem are fascinating.
But there’s waaay more to Steve Parrish than his motorcycle racing. He is also the most successful Semi-Truck racer ever, and, little known piece of useless trivia—he’s my birthday twin: 24th February. He is a natural entertainer and you can’t miss his recounting of the world’s most entertaining—and arguably terrifying—double-decker bus ride ever. If any of you were actually on that hell-ride then we’d love to hear from you!