Item code 0101: 162 cc - 66 mm Cylinder set for Honda CBR 125. Price: 138 USD.

Piston 66 mm, engine 162 ccm.  Even + 40% power. Fit Honda CBR 125 all year 2004-2018 ok.
The cylinder kit fit original cylinder head, relief valve cutting for original 24-28 mm valves.
Cylinder steel barrel, drill 2 times to 67, and 68 mm piston. I send for you.

Kit contents:
1 pcs. OEM Honda Sonic 125 Cylinder
1 pcs. Piston 66 mm (racing camshaft ready)
1 pcs. Piston ring set
1 pcs. Piston join pin
2 pcs. Piston join pin lock
1 pcs. racing camshaft Optional size 280-300- 320 angle (email for me)
1 pcs. Cylinder head gasket for oversize piston
1 pcs. Base  gasket bottom Sonic cylinder

Optional 280-300-320 angle racing camshaft

Item code 0102: 171 Gepard cylinder set Honda CBR 125. Price: 181.95 USD.
Piston 68 mm

Kit contents:
1 pcs. Genuine Honda CBR 125 Cylinder
1 pcs. Piston 68 mm (racing camshaft ready)
1 pcs. Piston ring set
1 pcs. Piston join pin
2 pcs. Piston join pin lock
1 pcs. racing camshaft Optional size 280-300- 320 angle (email for me)
1 pcs. Cylinder head gasket for oversize piston
1 pcs. Base  gasket bottom cylinder

Item code 0103: 171 ccm Gepard cylinder set for Honda CBR 125. Price: 145 USD.

Kit contents:
1 pcs. OEM Honda Sonic 125 Cylinder
1 pcs. 68 mm high compression piston low friction type. (racing camshaft ready)
1 pcs. Piston ring set
1 pcs. Piston join pin
2 pcs. Piston join pin lock
1 pcs. racing camshaft 280 angle
1 pcs. Cylinder head gasket for oversize piston
1 pcs. Base  gasket bottom Sonic cylinder

For Sonic kits neccessary modify you crankcase. Modify only surface, look last pictures. Occlude gap. (welding or aluminium glue). After modify use CBR or Sonic cylinder as well good.

Difference Sonic and CBR 125 cylinder only crankcase surface.

Load gap in crankcase, with two component epoxy base aluminium glue.

Item code 0104: Cylinder head multi functional 66-68 mm piston fit 30-34 mm valves Price: 134 USD
Used, renewed, upgraded cylinder head. Cam 280 ready.
Compatible: In itself for carburetor engine, with OSS type exhaust for injection bike.

Item code 0105: Xtreme head multi functional 66-68 mm piston fit 29-33 mm valves Price: 184 USD
Used, renewed, upgraded cylinder head. Small combustion chamber, modified version. Longer valve, extra deep ( 9 mm valve lift) and cross opening 330 angle camshaft ready. Pic: 1 2 3 4 5 6 7 8
Compatible: In itself for carburetor engine, with OSS type exhaust for injection bike