5 NEW HKS Campaigns listed on

JUN Auto Light Weight Flywheel Standard - L18 - RHDJapan

JUN Auto Light Weight Flywheel Standard - L18

39817 JPY
JUN AUTO SKU: 103979
Images used may be generic. Actual product may vary.

List Price: ¥45,360

Sale Price: ¥39,817

You Save: ¥5,543

This is a light weight substitute for stock flywheels. After installation, a huge difference in the way the engine revs and responds to pedal modulation can be felt.
Get this and all your JDM at RHDJapan!!
Brand: JUN Auto
Product: Lightweight Flywheel Standard - L18
Part Num: 2001M-N002 (L18: C230, R710, P510, P610, P810, S11)

Lead Time: Made To Order 2-3 Months
Type: Lightweight
Material: Chrome-molybdenum steel
Weights (Kg):
- L18 (C230, R710, P510, P610, P810, S11): 4.7 (OEM 7.4)

The Following Flywheel are Made-to-order. The flywheel may require up to two months for its production after we received your order:
- 2001M-N002 (L18: C230, R710, P510, P610, P810, S11)

JUN could achieve manufacturing its original flywheels about 200% more strength compared with normal flywheels. It was forged using Chrome-molybdenum steel. The power of inertia rotation can be decreased by reducing the excess weight, and therefore, its strength directly passed through to the high response.
JUN Ultra Light Weight Flywheel is targeted the customers who regard the higher rotation area for their highly modified engines. This flywheel is also designed to be strong as well as light-weight, and forged using Chrome-molybdenum steel.

Advantage by making a flywheel light
If a flywheel is made light, it is said that an engine response improves. In case of revolving thing like a flywheel, the power (inertia power) which is always going to continue fixed rotation occurs. When an accelerator is stepped on in from an idling state, a flywheel tends to keep an idling state according to its inertia power, although engine is going to raise rotations. When inertia power becomes large, much time is needed for going up rotation. In the case of the JUN lightweight flywheel, since weight (especially flywheel perimeter part) is light, there is little inertia power of influencing rotation of engine. Since time to go up rotation is shortened, the response of engine to a accelerator becomes quick (a response improves).

Weight, Strength, Balance
The JUN light weight flywheel is made from the optimal weight and optimal form which were set up for each type of a car from the chrome forge material. By shaving all circumference of the chrome forge material, the variation in weight and the deviation of balance are pressed down to the minimum. Processing for raising wear durability and heat treatment etc... is performed in the surface. Various know-how for realizing lightness, strength, and high balance is condensed to the JUN light weight flywheel.
Nissan Bluebird 510 (08/67-12/72) Eng: L18
Nissan Bluebird 610 (08/71-06/76) Eng: L18
Nissan Bluebird 810 (07/76-03/79) Eng: L18
Nissan Laurel KPC230 (1/77-10/78) Eng: L18
Nissan Laurel PC230 (1/77-10/78) Eng: L18
Nissan Silvia S10 (10/75-3/79) Eng: L18
Nissan Violet 710 (01/73-04/77) Eng: L18

Product Reviews


Submit a review now and earn 20 Reward points once the review is approved.

Applies only to registered customers, may vary when logged in.

Learn more...


RHDJapan Store Reviews


The Endless MX72 Plus is my go to brake pad for daily driving and track day usage. It will withstand multiple trackdays followed by street use without losing bite or stamina.
To me and most of the French GT86/BRZ community it's the only trackday orientated brake pad that doesn't squeek on a daily basis.

Great product, looks super strong compared to a standard one. Plus the price including shipping was less than a standard bearing in the UK!

Great parts that fit great and look great once installed. Very fast delivery too!

Great replacement product. The car is stiffer through the corner.

Please wait

Please wait...

Your Session is not Valid.

Please Login

{{var product.name}}