Super Head 4V +R Scut 178cc Bore Up Kit - 2010+ KLX110/L (DISCONTINUED) starter section that includes the piston

section that includes the piston and a gasket kit

the crankshaft has to fight the trapped charge inside the combustion chamber during the compression stroke to push the piston back up

Rim Width (in): 1

Typically no modifications are needed and works with the stock bore and all 134cc

Included/Replacement Parts:

Super Head 4V +R Scut 178cc Bore Up Kit - 2010+ KLX110/L (DISCONTINUED) starter section that includes the pistonDiscontinued in early 2020!!! Super Head 4V +R Scut 178cc Bore Up Kit* 01 05 0333 Displacement: 178cc Bore diameter: 67 mm Compression ratio: 12. 0: 1 Camshaft Included: 20 25D (decomp) Fits: '10 ~ KLX 110 L LX 110 D A 72046 ' 12 KSR 110 (KL 110 CBF) JKAKL 110 CCDA 00058 '13 KSR 110 (KL 110 DF) KL 110 D A 5700 2 '14 KSR PRO (KL 110 EF) JKAKL 110 EEDA 88121 In order for this kit to work on a 03 09 KLX110 you will need to use a 2010+ stock crank shaft