This 300cc Big Bore Kit is identical to the TPER-0007 300cc Big Bore Kit, but the standard 300cc pistons are replaced with high performance options.

In this case we have forged Wiseco pistons that are lighter and stronger than stock. They use Wiseco rings, clips and pins.

See below for performance details for TPER-0007.

Bore & Stroke is 59mm x 54.5mm giving a total displacement of 298cc.

Parts included in the NSR300 kit.

Cylinder x 2 (includes head studs, RC valve, pulley & nut and washers)

Rear Head x 1

Front Head x 1

Piston x 2

Ring set x 2

Piston Pin x 2

Piston Clip x 4

S/E Bearing x 2

Head gasket x 2

Cylinder gasket x 2

RC Valve cables x 4

Water hose x 1

Exhaust Manifold x 2 (to fit TYGA pipes)

Other information:

There is no problem about the RC valves hitting the piston due to thin cylinder wall thickness. This is not an issue on our kit as it’s using different

cylinders, not modified NSR250. They are genuine OEM Honda cylinders, made and plated in Japan to their typical high quality.

The RC valves are easier to adjust than ever on the 300 kit, as there’s only one adjuster screw to play with, and each cylinder marked at the correct ‘fully open’ position for simple setting.

Exact Jetting requirements for your area and application cannot be provided due to differing atmospheric conditions around the world. However, following are some base settings to work from:

MC21 Std bottom end, Wire splice, TYGA Pipes, Airbox lid mod with filter.

Temp: 29 C

Press: 1015mb

Hum: 65%

Alt: 30m

MJ – #182/#185

JN – Std./Std.

SJ – #38/#38

AS – 1.5 turns out

PwrJ – Std./Std.

Tip: Cooler temps, higher pressure and/or lower humidity require richer jetting. High altitude requires leaner settings. Starting off with rich settings will in the worse case foul a plug. Too lean a setting may destroy the engine.

This jet set-up is for guidance only. TYGA Performance cannot be held responsible for any engine damage incurred due to incorrect settings.

At present, this kit is available by special order. Each kit takes approx. four weeks to prepare.

Carbon tank grilles to decorate your MSX125 Grom. Fits over nasty plastic stock items and transforms the appearance of your bike. Install with double sided tape provided or with silicone sealant for a really permanant intallation

All new TYGA Tyre warmers are specifically designed to meet the needs of every racer and track day rider.

Fully adjustable, digital temperature control allows you to set your tyre temperatures to suit every situation with just a press of a button. The remote control box allows for quick and easy monitoring of temperatures.

Tyre warmers are an essential tool for any track excursion. For the racer it allows for lightening first lap action to get the jump on your competitor, and for the track day specialist there’s no more wasted laps trying to get heat into your tyres.

Another great feature is that you can refit the warmers between session and just set at a lower temperature to stop your tyres heat cycling . This gives you more tyre grip for longer, so your tyre won’t go off half way through the day.

These wamers are designed for Superbikes running the usual 120 front tyre, and 190-200 section rear tyre.

TYGA tyre warmers are designed to run on 220V, and use a C type plug. Power rating is 550W rear and 450W front.

Set pipe Full race system WSS300 (race), KTM RC390

This full exhaust system has been conceived to meet WSS300 specifications and carefully designed to squeeze the most power out of the 390. The stainless steel headers are tapered and the sections hand- rolled and welded to give this system incredible looks as well as performance.

And with full spring mounting, fitting and removal of the exhaust is quick and simple. Ideal in a race environment.

By taking advantage of better routing under the engine, the exhaust can be made to optimize dimensions to exploit the motor’s full potential. In addition, by tucking it up through the swing arm, the exhaust does not have any clearance issues in tight bends and is kept away from side which is the most vulnerable position in the case of an accident, increasing its survivability.

The system features a primary silencer, which helps reduce the sound level without any loss of performance.

The system is also provided with a dB killer as well as a carbon heat shield and a bracket so you can mount this system on the earlier RC390 models which did not have this already on the frame, meaning this exhaust will fit all RC390 models to date.

Sound test of the full TYGA system back to back with the Akrapovic World Supersport 300 titanium pipe.

As you can see on the chart below, the sound levels (without DK) are pretty much identical between the two systems. The DK knocks about 5 decibels off everywhere.
Due to the new routing of the exhaust, it is necessary to re-route the water hoses and remove the thermostat, and we provide all the necessary hoses for this conversion. Also, due the exhaust running under the engine, the stock belly pan is not compatible and we provide some alternatives which are not included in the cost of the exhaust.

Note, this is what we describe as the ‘Street’ system. The only difference between this and the race one is the silencer is in a more out board position to clear license/Registration place when used on the street. Powerwise, it is identical to EXPS-0112

Section, Left #1, KTM RC390 Serpent

Engine Covers, (Carbon), Pair, Ninja 400, 2018-

This engine protective cover set is made from lightweight carbon with an abrasion resistant inner layer of Kevlar. Now requirement for many racing classes and a sensible and attractive addition to a road bike.

Water Pump Shaft/Gear, MC18, MC21

High quality hard anodized aluminium gear, on precision ground shaft.

Manufactured by T2 Racing in Japan.

Direct replacement for the standard plastic shaft/gear which is prone to cracking and causing catastrophic failure.

The shaft and gear can be disassembled should any parts ever need replacing.

Note that this part is for MC18 and MC21 only. For MC28 please see TPER-5004

Tuning set CNC black GROM (msx-10158)

A set contains:

2x clutch – brake mount clamp

1x Brake reservoir cap

1x Clutch adjuster