105mm Big Bore Kit - KTM 690 Gen 4 Performance Upgrade (690cc to 732cc)

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105mm Big Bore Kit for KTM 690 Gen 3/4 - Ultimate Performance Upgrade Transform your KTM 690 with this premium 105mm big bore kit that increases displacement from 690cc to 732cc on the 84.5mm stroke engines and 654cc to 693cc on the earlier 80mm stroke engines. Engineered for bolt-on installation with OEM-type fitment, this kit delivers massive torque gains and improved power delivery across the entire RPM range. Premium Components: Mahle built piston and ring pack for reliability DLC coated piston pin for reduced friction Manual cam chain tensioner included Complete Kit Includes: Complete piston kit assembly Cylinder with cerakote logo Head gasket and base gasket New cylinder head bolts Manual cam chain tensioner Important Fitment: Only fits Gen 3/4 engines without counterbalancer in the head. Specifications: 9 lbs | SKU: 690105 | Origin: Austria Show more