Just need some advice..running a metzler 880 21" 3.5 on the front of 2008 deluxe...and the standard dunlop 16" on the rear..what pressures should I be running.? Im also about to change the rear to a metzler too, same size would it take the same pressure

 

Metzelers need to be run at a higher pressure than the stock dunlops. 40-42 psi.

 

Is that for front or rear..?

 

It has the proper inflation pressure on the side of the tire. All tires do.

 

No, that is the maximum pressure on the side.

 

I have 40lbs up front and around 47 in the rear but used to do a lot of 2up riding

 

What size are your wheels and what brand tires..?

 

For over 30 years I've been using the max pressure rating of a tire as a general guideline of how much pressure to put in it. I generally run a couple of pounds under the max rating. I never run less than 90%-95% of max rated pressure and I would never run more than the max rated pressure. It's always worked well for me (never had any handling or uneven wear issues) and I've never had to ask anyone how much air to put in my tires.

Just curious, what is the max pressure rating on that rear tire?

 

Tire pressures stated in the manual are for the tires that came on the bike. Optimum pressure is not necessarily going to be the same with different tires. Different tires also have different max pressure ratings.