Honda 04-17 CBR125 & 01-08 FS125 Sonic 58mm Cylinder Piston Rings Gasket Kit
Honda 04-17 CBR125 & 01-08 FS125 Sonic 58mm Cylinder Piston Rings Gasket Kit
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Fits Models:
Fit for Honda CBR125R 2004-2017
Fit for Honda FS125 Sonic 2001-2008
Replacement Part Number:
Cylinder: 12100-KGH-900
Cylinder Base Gasket: 12191-KGH-901
Cylinder Head Gasket: 12251-KTY-D30
Piston (Std): 13101-KGH-902
Pin, Piston: 13111-KGH-903
Piston Ring Set (Std): 13011-KGH-305
Circlips, piston: 13115-GN5-910
Tensioner Gasket: 14560-KGH-900
Valve Stem Seal: 12209-GB4-682
Features:
If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you.
Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured).
Piston is anodized for superior heat resistance and longer lifespan.
The gaskets use performance materials to increase durability and provide greater reliability.
Includes all gaskets pictured to rebuild top end.
Kit is for standard bore size - 58mm x 47.2mm stroke, 13mm steel piston pin.
Compression Ratio: 11:1.
This kit is excellent as a low-cost replacement for defects in the original cylinder.
Specifications:
Condition: Aftermarket 100% Brand New
Quantity: 1 Set
Material: Aluminum
Displacement: 124cc
Bore Type: Standard Bore
Cylinder Type: KGH
Bore diameter: STD 58mm
Stroke: 47.2mm
Pin diameter: 13mm
Attention:
This kit from Honda Sonic 125. The Sonic is fitted with the European CBR125R and Indonesian CS1 4-stroke engine.
Difference between Sonic and CBR 125 cylinder only crankcase surface.
CBR125: For kit neccessary modify you crankcase. Modify only surface, look second pictures. Occlude gap. (welding or aluminium glue : Load gap in crankcase, with two component epoxy base aluminium glue.).
After modify use CBR or Sonic cylinder as well good.
Package Includes:
1x 58mm Cylinder (12100-KGH-900)
1x Piston
1x Piston Ring Set
1x Wristpin
1x Circlip(2)
1x Cylinder Base Gasket (12191-KGH-901)
1x Cylinder Head Gasket
1x Tensioner Gasket
2x Valve Stem Seals
Note:
This cylinder(Sonic 125) is NOT the complete same look as the original CBR125, the crankcase suface need to modify, please don't purchase if you can NOT accept.
Carefully compare to your old parts to be sure this is the correct part for your machine.
The product on offer is an accessory or spare part and thus is not an original product of the vehicle manufacturer.
The name of the vehicle manufacturer is stated only as an indication of the determination of the product being offered as an accessory or spare part, to clarify, for which vehicle the product on offer Fits.
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Super fast shipping! The rebuild kit arrived in perfect condition. All gaskets fit my TRX400EX perfectly. Very happy!
This big bore kit transformed my TRX400EX! The 89mm cylinder shows perfect machining marks and the piston rings seat beautifully. Noticeable power gain across all RPMs.
Can't beat the price. Very nice quality and easy to install
When I asked about ring gap measurements, they responded with annotated diagrams showing three different measurement methods. Followed up after 50 miles to verify proper seating.










Let customers speak for us
from 2407 reviews
This product was exactly as described in the add.
The packaging was excellent. Lots of care went into this so nothing was damaged.
Great job 10/10 definitely recommend buying from them.

Packaged with care, arrived intact. Handles 30A load without issues. Great value for money!

Knowledgeable support team helped me compare OEM vs aftermarket options. The mirrors' aerodynamic shape matches the 929RR's lines beautifully. Top quality!

This big bore kit transformed my TRX400EX! The 89mm cylinder shows perfect machining marks and the piston rings seat beautifully. Noticeable power gain across all RPMs.

Installed in 10 minutes with basic tools. The gasket compresses evenly without tearing. Solved my intermittent charging problem completely.

This belt performs better than OEM on my Backcountry 850! Withstands deep powder riding without slipping. The reinforced fibers show no wear after 300 miles.

Safety Upgrade with a Super Easy Install. We always use the appropriate hand signals when riding in groups of 2 or more, but the added brake lights as well as turn signals are much appreciated by those riding behind me as I lead our groups more than most. I read the negatives comments about the adhesive, so I peeled the adhesive backing off, heated it with my heat gun and even heated the saddle bag a bit before mounting the lights and although it's early, it's been nasty hot, and the adhesive seems to be holding just fine!
The colors are a perfect match for the factory lighting on my bike!

Plug and play as advertised. This thing is awesome for the price!! Bike fired right up. No tuning or adjusting needed. I am very happy with it!!

Stator is well made and has put out consistent voltage.

Excellent parts, at a very good price

Installed flawlessly in my modified Charger. The 525LPH rating is accurate with consistent pressure under WOT. Anodized fittings resist corrosion better than stock components.

I purchased this item twice, once for the drivers side and again for the passengers side on my 2015 JKU. These rockers and lifters fit nicely and they look just like the parts from Mopar but at a fraction of the cost! I was able to use this set to replace all of the lifters and rockers and my jeep now doesn't tick! We've been around 1500 miles so far and the engine is much more quiet than before!

Tickking noise is gone!!!

I just installed these rockers and lifters and the tapping noise I had is gone. 2016 Jeep Wrangler 3.6. Couldn't be happier with the results. I will update if anything changes. I know what Mopar parts would have cost me and if these last half as long as the factory ones. I will still buy these again.

Perfect replacement at a great price. Love that it comes with starter and starter solenoid.