2005 C50 Boulevard Manuals That Say
2005 C50 Boulevard Manual It States

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I pumped my tires higher one day and noticed it made the bike vibrate something fierce.

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2005 C50 Boulevard Manual It States

In the owners manual it states the tire pressure should be 29psi for the front tire and 36 psi for the rear tire.

When I looked at the tires themselves it says they are 40psi tires.

How much pressure should really go into these tires BTW, these are the factory tires.

Thanks.

They made the tire and they know how much air should be in it.

Now, that said, air pressure unless too low only causes type of ride along with longetivity of the life of the tire.

The rolling grip between the rubber tire and road surface is really a matter of the rubber changing shape slightly to conform to the little dimples and bumps in the roads surface.

Lower pressure improves traction, but can overheat at highway speeds if too low.

If a tire is overinflated, it cant conform with the pavement, so tire pressure is a compromise between traction and reliability.

Your bikes manufacturer should have taken into effect the weight of the bike and the average riders weight to get the proper contact surface on the road.

So Id only go with more pressure if you weight more than the average.

2005 C50 Boulevard Manuals That Say

Ive seen Ducati manuals that say average is 145 185lbs, for setting up the suspension.

This may be a stupid question but Im going to ask anyway because of the difference between the tire and the owners manual.

There is a difference between maximum pressure and recommended pressure.

Im assuming you read the maximum pressure off of the tire sidewall.

Suzuki lists the recommended pressures on the bike itself (decal) and in the owners manual.

Ok, Im going to state the obvious that you probably already know, but thought Id mention it.

When I checked the tire pressure this weekend, both front and rear is at 36psi which is not what the manual states.