Royal Enfield 650 Twins get the S&S 'Proven Performance' treatment
S&S Cycle of Viola, Wisconsin, are internationally recognised as THE primary 'Go To' for 'Proven Performance' parts, engine components and exhausts in the Harley-Davidson and wider custom V-twin market.
Founded in 1958, the company has set or been associated with hundreds of Bonneville and drag race speed records and just as many of the most revered performance V-twin builds worldwide for over 60 years. In recent years S&S has been Indian Motorcycle's performance R&D centre and pit crew of choice, helping them to land consecutive American Flat Track rider and manufacturer championships with the all-conquering FT750.
They were a logical choice then when Royal Enfield chose them as its 'Go To' for refining the Royal Enfield Bruntingthorpe proving ground, England Technology Centre designed wet sump, air-cooled SOHC, 8V, 648 cc parallel twin engine. Harris Performance had designed the chassis, and it was S&S Cycle who tuned the engine to make the pre-production protypes of the Interceptor retro naked middleweight and Continental GT Roadster production-ready.
Proven by S&S on drag strips, race circuits and with world records set on the 'Great White Dyno' (the legendary Bonneville Salt Flats) before going on sale, the world renowned American company has been Royal Enfield's natural partner where performance is concerned ever since.
From that experience has come a cutting edge selection of compliant and race-only upgrades for dealers in Europe - a programme that will allow owners to embrace the almost infinite options for personalisation and performance that the versatile 650 Twin platform represents.
Custom examples of the Interceptor and Continental GT have been a mainstay of print and online media in Europe for a couple of years now. Thanks to this S&S Cycle programme, the Royal Enfield 650 Twins and Himalayan 400 cc singles can become the 'everyman' custom platform for budget conscious riders, that always was their destiny…
'Qualifier' exhaust
The 'Qualifier' is an aggressively styled 2-1 race replica exhaust system built for 2019-2020 RE 650 models. Crafted from TIG welded brushed stainless steel, it's as durable as it is good looking and sheds a full 28 lbs over the stock system. It increases horsepower by +12% and torque by +7% while emitting a deep race sound that's just as happy on the track as it is on the street. SAE J2825 sound level compliant, durable all stainless steel construction.
Tapered cone slip-ons
These classic tapered style slip-ons in all stainless steel construction feature a brushed stainless steel finish, removable dB reducer, deep performance exhaust sound and deliver improved horsepower and torque. J2825 sound compliant, the stock muffler weighs 10.1 kg (22.4 lbs), the S&S Street tapered cone is just 4.9 kg (10.8 lbs) and the Race Only version is just 4 kg (9 lbs).
650 Twin air filter
This high-flow air cleaner flows +12% better than stock (34.7 cfm vs. stock 30.9 cfm); washable, easy to install. A cover eliminator plate with high-flow performance.
Cover eliminator
The high-flow performance delivers a +95% increase in flow when paired with the S&S air filter (60.4 cfm vs. stock 30.9 cfm). It is easy to install and made from durable stainless steel.
High-performance cam
High lift and longer duration cams build power sooner in the rpm range and hold it for longer. The new S&S cam for the 650 Twin uses the stock adjustable timing sprocket to allow the power curve to be dialled in to match the riding style.
High-compression piston and 750 cc/868 cc Big Bore kits
These high compression pistons feature a 7 cc raised dome to achieve a compression ratio of 11:1 (from 9.5:1). Higher compression is a key factor in increasing performance.
The 750 cc kit takes the stock bore and stroke out from 78 x 67.8 mm to 83.5 x 67.8 mm; the 865 cc kit out to 90 x 67.8 mm.
Handlebar adjusters
For 650 Twins; easy to install, up to 1" (25 mm) forward or backward adjustment. Manufactured from 6061 billet aluminium with a durable black powder-coat finish.
Li-ion battery
This lightweight 210ca/3.6ah Pulse IPT lithium-ion P.14 battery features emergency start capability.
Dynojet Power Commander V Tuner
S&S says it recommends this Dynojet Power Commander to "liberate the untapped potential" and "get the most out of your chosen performance combinations" for the 650 Twin power plant.
High-performance throttle body
Race-inspired, state-of-the-art shaftless throttle bodies allow for unobstructed air flow and instant response from idle to wide open. Constructed of billet aluminium and stainless steel, the S&S shaftless throttle body is designed for the "ultimate" in race builds.
H-Beam connecting rods
These forged billet 4340 steel H-Beam connecting rods for the 650 Twin "give superior strength over the stock rods. They include durable ARP 2000 fasteners and a longer life thanks to the shot-peened finish. They feature premium bronze wrist pin bushings and are held to very tight tolerances with bores finished to +/- .0001" and weight to +/- 1 g per end. These are stock length rods with a floating style wrist pin; the Big End weighs 383 g with bolts, the small end is 94 g.
S&S CYCLE INC.
www.sscycle.com
