About quality and texture - The CR9E spark plug from NGK is a standard resister plug with a heat rating of 9, made using high quality processes and materials.About the feeling of use - Having a different styled base then the original spark plug was what I needed to resolve my problem, I found the original spark plug would no longer full seat due to the step on the base and a migrated thread in the head. Changing to a spark plug with the same reach but a fully threaded base was the easiest way to over come this issue.Products to buy together - With the spark plug being a regular service item, key products to purchase when carrying out maintenance on my motorcycle would be crush washers, gaskets and the like as these products are cheap and convenient to have on hand.Difficulty of installation - The installation of the CR9E spark plug is an simple task that took 0.2 of an hour to complete. Some mechanical aptitude and the use of basic hand tools is all that is required to firstly check the gap between the center electrode and the ground electrode and then install the spark plug onto the cylinder head.Cost performance and comparison with other products - I find the cost of all the products NGK sell to great value when compared to what most other companies sell their products for and the CR9E spark plug is no different.About shipping and packaging - With there being no cost difference between sea freight and EMS for the CR9E spark plug, I chose EMS for an earlier arrive date. The part was extremely well protected while being covered in bubble wrap and surrounded with air pillows in a sturdy cardboard box.Any concerns, cautions, or advice when purchasing - Webike Japan is the first place I look to for all my motorcycle needs. From service parts to performance products and even motorcycle gear and apparel, Webike always seem to satisfy my needs in regards to availability and pricing.View Detail

About quality and texture - Excellent quality, I always use NGK over other brands.About the feeling of use - Threaded in nicely and the motor feels stronger with the new spark plug fitted.Products to buy together - NGK plug cap, product # LD05F is a good idea to install at the same time.Difficulty of installation - Easy install, just remember to check your gap before install.Cost performance and comparison with other products - Cost is fair and on par with the same product other brands offer.About shipping and packaging - I used the sea freight option so slow but arrived in the time frame advertised and well packaged.Any concerns, cautions, or advice when purchasing - If you unsure about anything NGK when purchasing visit the NGK website for the answer.View Detail

Due to my current engine changes I was unable to continue using the OEM recommended NGK CPR6EA-9 spark plug as this part number would be running too hot for my new higher compression piston and lead to a shorter then expected engine life, which nobody wants. As recommended by the experts out there I purchased this part number and for the engine run in period looks to be working well with my engine changes. NGK is a trusted company, I have always received great products from them and this one is no different. Webike have a nice range of NGK spark plugs and at a great price. Will happily purchase NGK from Webike again in the future.View Detail

NGK is my go to brand for spark plugs for my motorcycles and cars. Due to the Special Parts Takegawa !43cc N-20 big bore kit installation I had to change the spark plug from the stock NGK spark plug for cooler running operation. This spark plug was recommended by many people on forums and online sites and has worked very well so far with my new engine setup. With all my good experiences with NGK products I am always happy to recommend NGK to fellow drivers and riders with confidence. Thank you NGK for your fabulous products and thank you Webike for offering all this products up on your site. Very much appreciated.View Detail

Since it is an OEM-adopted product, it installs without problems and maintains its performance with periodic replacement.

I replace it at the same time as the Air Filter when I feel that the fuel consumption is getting worse. I replace it at the same time as the air filter when I feel my fuel consumption is getting worse.View Detail