K&n air filter

[Mark lindsay]

Does a aftermarket air filter improve bikes performance? Best aftermarket air filter and what gains on performance?

[Simon]

They use the same air filter for the 125 250 650 the standard is more than capable of dealing with anything, no benefit from a k&n.

[♠️ MARCEL]

The main reason for K&N is due to the fact 125 owners put exhausts that flow more air out, thus leaning out the bike, without upgrading the jets together and its a lifetime item than replacing the oem catridge every 5k (if you near the salty seas n sandy air or desert)  though Korea says replace 125 catridges around 12k mark but K&N is foreever.

The K&N also

• Requires rejetting (more air in = more fuel in) – You will get a very minor boost on top gear, very minor.  It will not increase speed on a 125
• Because the OEM catridges have a snorkel , K&N doesn’t , you will find you will hear more of your intake roarings with K&N (deeper sound)
• K&N is lifetime, if not mentioned before.   Re-oil every 20k miles or so

Though as Simon says, the OEM catridges are also used in a 650cc, so they have more than enough CFM for the 125cc without crazy modding it.

However, you will get more gains by following the slide mod for your carb in thr TUTORIAL section,  it costs £0  😉

// Meditation doesn't mean you have to sit still....

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