Having heard that there will be a 125cc version of a motorcycle that looks like MONKEY.MONKEY was a big hit in the 1970s and is still available in new model catalogues. The 125cc version of the Monkey is sure to be a hot topic. World Walk also ordered a GROM from HONDA right away, but it was backordered and took 3 months to get to them. It is easy to ride and fun to ride because of the large torque in the low and mid range.
Wishing to make a ehaust that makes riding GROM more fun.It makes riding GROM even more fun.The development concept of the Power Silent Exhaust for GROM has been decided.
●The aim was to improve the accelerator response
GROM weighs only 102kg.It's easy to maneuver, so it's great for riding around town, but it also has good footing, so even if the tires slip a little, you can put your foot down and avoid falling. Therefore, you can drive on flat dirt.It seems that many users actually go out to play on the forest road with Grom. One of the appeals of GROM is that it is lightweight and has good torque in the low to mid range, so it can be ridden on any road. Rather than increasing the peak power, which is not used very often, World Walk concluded that improving the low to mid range torque, which is the appeal of GROM, by changing the exhaust would lead to "making GROM fun to ride".
●The shape of the exhaust pipe creates the ideal power characteristics
The silencer is the same as the one used in the power silent exhaust for CYGNUS, PCX and ADDRESS. Compared to the stock silencer on GROM, this silencer is much more forgiving and the volume is much lower. The Power Silent Exhaust for GROM has been prototyped in a variety of thicknesses and lengths. The exhaust pipe finally adopted is longer than the stock GROM exhaust. By increasing the length of the exhaust pipe, the torque at the start of the run is improved, and by increasing the thickness of the exhaust pipe, the flow of exhaust gas is improved and the response in the middle range is improved. The weld seams are welded in to secure the strength and the layout of the exhaust pipe is the same as the stock exhaust, with the silencer under the rear seat. As a result of repeated test rides of GROM under various conditions, the exhaust made contact with the ground or an obstacle when it was installed at a low position depending on the conditions.
●The exhaust that was completed after a lot of hard work had the characteristics that World Walk wanted
By replacing the exhaust system with a power silent exhaust system for the GROM, World Walk did not aim to increase the peak power, so the maximum power output was only increased by 0.7 horsepower, but as you can see in the graph, the torque is strong from idling around 1400 rpm to around 3200 rpm, and even after 5000 rpm. This is much more torque and power than the stock GROM exhaust. There is a slight drop in power from 3200rpm to 5000rpm, but the torque at the start of the run is so strong that you can hardly feel the drop in power.
●The material is stainless steel which does not deteriorate easily and is lighter than the stock one
The stock exhaust for GROM is made of steel, but the Power Silent Exhaust for GROM is made of stainless steel for the exhaust pipe, silencer, mounting bracketss and bolts. It is lighter and stronger than steel, so it is lighter than the stock exhaust of GROM.The difference is about one kilometer. The surface is polished and shiny.In addition, it has a high resistance to rust and abrasion, which makes it difficult for the performance to deteriorate.
●Volume is Gentle Sound.Sound quality is bass heavy with a custom feel
The volume of the Power Silent Exhaust for GROM is 71 decibels at the proximity exhaust.The noise level at acceleration is 77dB. As you can see from the data from the chassis dynamo, it produces a lot of power, but as the name of the product "Power Silent Exhaust" suggests, it is also a very quiet exhaust. The volume is small, but the sound quality is finished with a heavy bass sound like a custom exhaust.
●JMCA certified models for assurance
The Power Silent Exhaust for GROM has passed JMCA (Japan Motorcycle Accessories Association). Not only the volume, but also the platinum coated catalyzer is welded to the end of the exhaust pipe.
●Let's take GROM and travel wherever you want to
By installing the Power Silent Exhaust for GROM, GROM will have even more mobility. The low volume allows you to start the engine and warm it up without worrying about the neighbors when you go out, and the bass sound will satisfy your sense of ownership. The light weight body is further shaped to increase the power and the lightness is not compared with the stock GROM exhaust.The Power Silent Exhaust for GROM will make your ride more comfortable not only for short trips but also for long trips and forest roads.
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