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Scooters - 125 to 300 => Downtown 300 => Topic started by: Going Downtown on April 04, 2015, 07:06:56 AM

Title: Tire pressure on downtown 300i
Post by: Going Downtown on April 04, 2015, 07:06:56 AM: Anyone tell me what the tire pressure should be on the downtown 300 i with manufacture tires? Thanks
Title: Re: Tire pressure on downtown 300i
Post by: windwheeler on April 04, 2015, 10:36:14 AM: Quote from: Going Downtown on April 04, 2015, 07:06:56 AM
Anyone tell me what the tire pressure should be on the downtown 300 i with manufacture tires? Thanks

If you wish to go "by the book" look what the owners manual states, or the sticker on your DownTown.

If you want to go with "my experience" based on many, many miles on many different motorcycles and scooters: As high as yo can "stand" and is permitted by the TIRE manufacturer, printed as "maximum load pressure" on your tire's side-wall. However, if it says e.g. 44psi or even 50psi, my "cut-off" top pressure is 40psi, and I check often so it never falls below 36 psi.

This conclusion for me is based on "safety", "not wanting to bend rims" on potholes, and "tire life".

That works for me very well, doing a lot of curvy roads. If one rides mainly straight and no-pothole roads, a lower air pressure between 34-36psi works well too. However, my experience showed over the years, in general, higher air pressure (for street use, not racing) has technical advantages and is safer.
Title: Re: Tire pressure on downtown 300i
Post by: de dee on April 04, 2015, 10:42:59 AM: the book says 2 kg. front and 2.25 rear, ( 28 lb. and 34 lb. ) you ride it and adjust to your own liking, about 1 lb up or down
Title: Re: Tire pressure on downtown 300i
Post by: Going Downtown on April 05, 2015, 01:28:06 AM: Thank you.
Title: Re: Tire pressure on downtown 300i
Post by: Stig / Major Tom on May 07, 2015, 10:08:15 PM: Going over recommended PSI will lower tire/road contact area - but probably not enough for non-racers to notice.
Ironically - One size larger (wider) tire has the same loss of area effect....but, again, most won't notice.
This was explained to me buy a pretty smart veteran bike rider/parts manager.
He showed me with a tire.
Stig
Title: Re: Tire pressure on downtown 300i
Post by: kneeslider on May 08, 2015, 01:03:59 AM: Quote from: de dee on April 04, 2015, 10:42:59 AM
the book says 2 kg. front and 2.25 rear, ( 28 lb. and 34 lb. ) you ride it and adjust to your own liking, about 1 lb up or down

28 psi sounds a bit on the low side, but i guess perhaps the scooter has most of its weight on the rear.
Title: Re: Tire pressure on downtown 300i
Post by: RubenC on May 08, 2015, 03:06:16 AM: The 2012 USA Owner's Manual says front 29Lbs and back 32lbs.
Title: Re: Tire pressure on downtown 300i
Post by: nushipwright on May 08, 2015, 06:07:00 AM: I inflate mine to just over the manual recommended. 2 for front and 2.25 rear, and just a tad over those values when cold.