New crankcases and a crankshaft with larger diameter journals to support higher engine output and increase durability. A new cylinder head features modified intake and exhaust ports to achieve higher efficiency. To match the new cylinder head, a new head gasket design is used.
The intake and exhaust camshaft valve lift and timing were optimized to realize new engine output goals and help gain compliance with emissions regulations (EPA, CARB and Euro 5+). The camshafts’ maximum lift has not been changed, but the overlap has been reduced.
Complementing the four primary fuel injectors in the throttle bodies are four Suzuki Top Feed Injectors (S-TFI) that spray fuel from the top of the airbox directly into the intake funnels. For 2026, the S-TFI injectors are updated to an eight-hole from a ten-hole design which helps result in higher peak power, more efficient combustion, and more precise fueling control.
Additionally, a new, wider cam chain helps reduce frictional loss, (especially significant when using low viscosity oil in sprint or endurance races), plus the cam chain drive and driven sprockets design have been changed to match.
A new intermittent lubrication scheme is employed to precisely lubricate the camshafts with a specific amount of oil. This aids in ensuring lubrication in other sections of the engine and can help reduce losses due to oil windage.
The proprietary Suzuki Racing Variable Valve Timing System (SR-VVT) uses a centrifugal actuated mechanism on the intake camshaft sprocket that increases high engine rpm power without losing low- to mid-range power.
Revised for 2026, a change to piston heads to accommodate larger valves helps raise the compression ratio to 13.8:1 from 13.2:1 to aid power production. Matching other changes, the 2026 model’s new cylinder head’s combustion chamber design continues to minimize heat production.
The 4-2-1 exhaust system is all new for the 2026 GSX-R1000R to help the engine deliver a wide range of performance with an exciting rush up to the red line. The position of the exhaust collector is moved closer to the engine to aid in mass centralization while also helping the catalytic converter’s “warm up” which aid flow and a reduction of exhaust emissions.
The media-blasted titanium muffler with muted GSX-R logo enhances the new exhaust system’s appearance and is mounted high for good ground clearance at high lean angles while creating an exciting, distinctive sound. The exhaust’s new layout helps reduce the muffler size from 8.3 L to 5.5 L but retains the same performance as the prior system.
ClutchWet, multi-plate type, SCAS-equipped
Transmission 6-speed constant mesh
Final Drive Chain, DID 525HV3, 120 links
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Comments
- weight gain, power loss, old design, new decals, bigger exhaust, winglets (which have been around for a long time on the competition and are just now being added), no tft screen. i was so excited when i saw the trailer so the 40th anniversary launch was a bit disappointing but congrats on the return.🎉🎉
- Maybe put a E start on your 250 & 450 dirtbikes 😂 like everyone else
- Thats what im talking about now bring this to World Super Bike!
