Skip to product information

Takegawa - Crankshaft Support Adapter

SKU: 700010521

Since the GROM / MSX125 / MSX125SF generator is mounted on the L. crankcase cover, the flywheel mounting direction is closer to the outside (shaft tip). For this reason, the rotational weight of the heavy flywheel is applied to the outside of the tip of the crankshaft, and in an engine with improved pickup, the burden during acceleration and deceleration doubles. This can cause the generator and flywheel to interfere, adversely affecting ignition timing and, in the worst case, damaging the crankshaft.

This product changes the crankshaft journal part from 3-point support to 4-point support by installing a ball bearing in the stator, and limits the runout of the crankshaft that occurs in the high rpm range of the bore-up engine. By limiting it, runout can be suppressed and the durability of the normal crankshaft can be improved.

Assembling structure that can support the crankshaft journal part at 4 points by attaching it to genuine parts without the need to replace the crankshaft.

Before purchasing, it is necessary to check the normal crankshaft currently in use.
If the crankshaft is shaken above the standard value, it is necessary to remove the runout or replace the crankshaft. The product number of the crankshaft support adapter differs because the mounting shape to the stator comp differs depending on the vehicle name and frame number.

  • Monkey 125 (JB02)
  • MSX125SF
  • Grom (JC61 / JC75)

DISCLAIMER: By purchasing products from this store it is recommended you engage a qualified mechanic to ensure safe and correct installation of all parts & accessories. The customer agrees and accepts it is their responsibility for all installations and modifications which can result in damage, engine failure if installed incorrectly of which Monkey Bike World Pty Ltd can not be held responsible.

Warranty of the products are given by the original manufacturer.  Warranty is void if the product is modified in any particular way and used in a process that is not for its intended purpose.  All items are inspected prior to dispatch and are deemed to be fit for purpose.

We are unable to offer warranty on any engine parts or kits due to the uncontrollable stresses that can be placed on these parts of which we have no control over.  It is recommended to follow the manufactures guidelines who have already pushed and tested their products fully.