LIGHT BORE KIT 160CC

░ FOR HONDA MSX125 / HONDA GROM (USA/JAPAN) 

 





This 160cc Light Bore cylinderset is developed in a multi-functional way because even if it's a light bore kit, it gives you more possibilities later on.

The piston from the 160cc light bore kit is made to work in combination with the genuine 125cc head and valves and can be used in combination with the stock throttle body.

A great feature from this kit is that you have the possibility to bore the 160cc light bore cylinder up to 170cc and even 175cc, and that the valve pockets in the piston are prepared to instal a large 30/24.5mm valve head. 

If your 160cc cylinder would need to be replaced over time, then the only thing you need to do is to order the appropriate bigger bore piston set for the displacement you want, and you can bore your 160cc up to the displacement of your choise, you don't need to buy an other cylinder for that.

If you install the 8-holes big bore injector 16450-K26-001, then you don't need to buy a special electronic box or change something on your ECU then.. (The ECU is the computer which controls your ignition and injection timing). 

The 160cc Light Bore cylinder comes in the original black color. 

 

The MSX/GROM 160CC LIGHT BORE KIT includes:

  • 1 x 59mm Aluminum cylinder
  • 1 x 59mm Light Bore Piston
  • 1 x 59mm Piston ring set
  • 1 x Piston pin (13mm)
  • 2 x Piston clip
  • 1 x 59mm Head gasket
  • 1 x Cylinder base gasket 

PRODUCT CODE: 12103-K26-590A

PRICE: 8.624THB (195.00€ / 265.00USD) Exclusive V.A.T.

 

 MSX/GROM 160 TOURING KIT

░ FOR HONDA MSX125 / HONDA GROM (USA/JAPAN) 

 


● This new 160cc Touring kit is really a great value for money kit and mentioned for all the MSX/GROMMERS who want more cruising speed power, want to go on the highway from time to time, but don't want to rev the engine above the stock RPM limit.

Top speed will be around 120km/h (75mph) and the set comes complete with the 8-holes MSX/GROM big bore injector 16450-K26-001 which is the perfect injector to control your AFR ratio between 160cc and 180cc. 

If you install this set then you don't need to worry about the air fuel ratio so you don't need to install a special controller to control the air fuel ratio. You do will need to remove the stock air filter because the stock air filter is a serious retrictor...

The set comes complete with the SX250 camshaft, and very special valve cotters which allows you to install a higher lift cam without damaging your valve seals.

The 6 reinforced clutch springs make sure that you don't miss one single RPM.

The piston from this 160cc Touring Kit is plug and play to be installed with the stock 125cc head, and a extra bonus is that the piston's valve pockets are prepared to accept the big valve SX30 head with 30/24.5mm valves with 4.5mm stems. 

Total official price from this all-new MSX/GROM 160 Touring Kit is 14,000THB / 318Euro / 429.00USD (Exclusive VAT, transport and import duties)

**If you install this set, then we recommend you to replace the stock air filter with the K&N R-1100 air filter to make your bike able to breath.

Recommend sprocket combination is 14/31T.

If you have the shorter 4th gear overdrive set 23471-K26-025 installed, then we recommend sprocket combination 14/30T. 

 

The MSX/GROM 160 TOURING KIT includes:

  • 1 x 59mm Aluminum cylinder
  • 1 x 59mm Light Bore Piston
  • 1 x 59mm Piston ring set
  • 1 x Piston pin (13mm)
  • 2 x Piston clip
  • 1 x 59mm Head gasket
  • 1 x Cylinder base gasket
  • 1 x Big-Bore Fuel Injector 16450-K26-001
  • 1 x SX250 7.1 Billet CNC Camshaft
  • 4 x High Lift Valve Cotters
  • 1 x NGK CR9E Spark Plug
  • 1 x Reinforced clutch spring set (6Pcs/set) 

 

PRODUCT CODE: 12103-K26-590AT

PRICE: 14.000THB (318€ / 429.00USD) Exclusive V.A.T.


 

WORD OF WARNING!! If you install a 150cc or 160cc on your MSX/GROM, then keep in mind that you need to check the AFR ratio and people who have a fuel injection controller with the possibility to adjust the pre-ignition must be aware that to much pre-ignition will blow a hole in your piston.

We don't take responsibility if you get carried away with the amount of pre-ignition, and the damage that occurred because of it.

We recommend to install the Innovate MTX-L Wideband O2 digital Air/Fuel Ratio Gauge (click here to see the details).

If you don't install a wide band AFR gauge, and start playing around with a fuel injection controller without knowing where you are or what you are doing concerning the AFR ratio, then this will end up with an overheated/detonated engine where you will see a piston that is scuffed at the "four corners".

If you look at the bottom side of a piston you see the piston pin boss. If you look across each pin boss it's solid aluminum with no flexibility. It expands directly into the cylinder wall. However, the skirt of a piston is relatively flexible. If it gets hot, it can deflect. The crown of the piston is actually slightly smaller in diameter on purpose so it doesn't contact the cylinder walls. So if the piston soaks up a lot of heat, because of detonation for instance, the piston expands and drives the piston structure into the cylinder wall causing it to scuff in four places directly across each boss. It's another dead give-a-way sign of detonation. Many times detonation damage is just limited to this.

What typically happens is that when detonation occurs the piston expands excessively, scurfs in the bore along those four spots and wipes material into the ring grooves. The rings seize so that they can't conform to the cylinder walls. Engine compression is lost and the engine either stops running, or you start getting blow-by past the rings where you see your swing arm and rear wheel/tyre covered all over with oil. That torches out an area. Then the engine quits.

So install a wide band AFR meter en make sure that you are using an AFR ratio between 11.8 and 12.6 at high load, it's no problem to have 14.7 at iddle