KITACO Stroke-Up Crankshaft (12V Type) for Monkey/Gorilla/XR50R etc. 309-1123400

Product Introduction

A long-stroke crankshaft necessary for increasing engine stroke.

By reducing rotational mass, it achieves superior power and improved responsiveness at high RPMs without sacrificing low-speed torque.

The timing gear and ultra-high-speed precision bearings shown in the image are all pre-installed.

*The standard and older KITACO oil pump spindles cannot be used. Please be sure to use the current spindle.

■Type 12V Type - 54.0mm Stroke

■Compatible Models 【Compatible with the following KITACO bore-up kits】 Each bore-up kit 124cc (Monkey series compatible models C')

【The following are compatible models C'】 Monkey/Gorilla: Z50J-2000001~ / AB27-1000001~1899999 Monkey Baja: Z50J-1700001~ XR50R/CRF50F: AE03 XR70R/CRF70F: DE02

■Specifications ○H-beam connecting rod adopted ○Ultra-high-speed precision bearing and timing gear installed ○Replacement ultra-high-speed precision bearing (1 piece): 315-6205000 (#6205)

Caution (Disclaimer) > Please read carefully

4990852080915 Compatible Models: [Compatible with KITACO Bore-Up Kits] 124cc Bore-Up Kits (Monkey Series, Compatible Model C') Compatible Models: [Compatible Model C'] Monkey/Gorilla: Z50J-2000001~ / AB27-1000001~1899999 | Monkey Baja: Z50J-1700001~ | XR50R/CRF50F: AE03 | XR70R/CRF70F: DE02 H-beam connecting rod adopted Ultra-high-speed precision bearing and timing gear pre-installed Replacement ultra-high-speed precision bearing (1 piece): 315-6205000 (#6205)