K-Tech KTR-4 Racing Superbike Front Fork

Premium race-spec front suspension engineered for maximum performance, stability, and precision on track.
The Bitubo RRH series is designed for professional superbike applications, offering fully adjustable settings and wo

The K-Tech KTR-4 Front Fork is a premium, race-bred suspension system engineered for superbike riders who demand maximum performance, precision, and control. Developed using World Superbikes and international road-racing data, the KTR-4 delivers exceptional rigidity, ultra-smooth damping, and consistent feedback under the most extreme conditions.

Key Features

• Full Racing Specification
Designed for superbike competition with advanced internals for superior damping stability and cornering support.

• Ultra-Rigid Construction
Built using high-strength alloys that improve chassis stability, front-end feel, and braking confidence.

• Fully Adjustable
Independent compression, rebound, and preload adjustability allows precise tuning for track conditions, tyre choice, and rider preference.

• High-Flow Cartridge System
Ensures fast oil movement for consistent damping through long race sessions without fade.

• Designed for 108mm Radial Brakes
Compatible with modern superbike braking systems for improved stopping power and rigidity.

Fitment

The K-Tech KTR-4 Racing Superbike Front Fork is suitable for high-performance superbikes and custom race builds. Please contact us with your motorcycle model to confirm compatibility before ordering. 

Compatible with a wide range of motorcycles across major brands, including Aprilia models such as Dorsoduro (2009–2017), RS660 (2021+), RSV4 variants (2009–2025), Tuono 660 and Tuono V4 (2015–2020), and SR 50 R. BMW applications include HP4 Race (2017–2020), R1200GS, R1200R/RS, R nineT, R1200RT, and S1000RR/M1000RR from 2009–2025, as well as S1000XR. Suitable for Brixton 250 series models, Buell XB9R/XB12R, and a wide range of Ducati models including 1098, 1198, 848, Hypermotard (2007–2012), Panigale 899/959/1199/1299, V2 and V4 families, Scrambler series, and Streetfighter V4. Supports Honda CBR1000RR (2004–2025), CBR600RR (2003–2020), Grom/Monkey variants, CMX 500 Rebel, Africa Twin, RC51, and SH125/150. Compatible with Husqvarna 701, FE 450, and multiple Kawasaki platforms including Ninja 250/300/400/650, ZX-6R, ZX-10R, ZX-14, Z-series, Vulcan S, Z H2, and ZX-4RR. Fits KTM models including SuperDuke, Adventure, Duke, RC, EXC and SX ranges. Covers Moto Guzzi V7 series, MV Agusta Brutale, Dragster, F3, F4, Rivale, Stradale, and Superveloce. Suitable for Suzuki GSX-R models (600/750/1000 across multiple generations), GSX-S series, Hayabusa (all years), SV650, TL1000R, Katana, and GSX-R/GSX-S125. Works with Triumph Daytona 675, Speed Triple, and Street Triple series. Yamaha compatibility includes MT-07/09/10, FZ1, SCR950, Tenere 700, XSR700/900, XV950R, YZ450F, YZF-R1 (all generations), YZF-R3, YZF-R6, YZF-R7, YZF-R9, plus Zonkador SuperGP.

Why Choose K-Tech?

K-Tech is globally recognised for producing competition-proven suspension used in BSB, WSBK, Isle of Man TT, and MotoAmerica. Their products offer world-class engineering, precision craftsmanship, and unmatched racing reliability.

rld-class damping control. Built for riders who demand the highest level of front-end feel and braking stability.

Key Features

• World Superbike–Level Engineering for superior rigidity, feedback, and stability under extreme braking.

• Fully Adjustable Suspension including compression, rebound, and preload for precise tuning.

• High-Performance Internals designed to maximise tyre contact, reduce chatter, and improve corner entry confidence.

• Race-Optimised Length Options to suit different brake rotor diameters.

• Lightweight, Durable Construction for consistent performance under heat and load.

Available Variants

• 780mm Length — For 320mm Discs

Designed for superbikes requiring additional fork length with 320mm rotors. Ideal for aggressive race setups needing extra stability and adjustability.

• 750mm Length — For 330mm Discs

Optimised for bikes running larger 330mm rotors. Offers sharper turn-in and improved braking support with reduced dive.

• 750mm Length — For 320mm Discs

Perfect for standard 320mm rotor configurations, delivering balanced handling and strong mid-corner support.

Fitment

Bitubo RRH Racing Forks are commonly used on high-performance superbikes, including but not limited to:

Yamaha R1 | Yamaha R6 | Kawasaki ZX-10R | Kawasaki ZX-6R | Honda CBR1000RR | Suzuki GSX-R1000 | Ducati Panigale Models | BMW S1000RR
(Professional installation and race-level setup are recommended.)