I put 20 pounds and the bike rode great.
I ride with 25lbs, lots of guys from the Mongoose Forum go with 17lbs.
Tires are marked only Max 30 psi, no min. 30 is too much for soft deep sand-it dug in about an inch and left a track 3" wide-too hard to pedal like that-gearing not low enough and it started fishtailing in front.
Other people said you can go as low as ten psi-I'd stay higher-enough that the tire compresses no more than an inch in thickness on pavement with the rider on it.
At that, the tire flattens enough for flotation instead of sinking in. If too low you risk: tube rotating inside the rim, tire coming off rim in hard turns and over obstacles, tire sidewall damage from overflexing, tube "snake bite" pinch punctures where the obstacle flattens the tire and tube against the rim, rim damage, dangerous steering, broken spokes.
A low pressure tire is no substitute for a suspension.
30 psi for the road. 4-7 psi for soft sand / hard pack sand
30 psi is the maximum safe pressure. This does not mean you should inflate to this pressure. The more air the easier it will be to pedal but the harder the ride. You need to choose the trade-off that is right for you.
Hi Brando, thank you for your question. The Mongoose Dolomite 7-speed Fat Tire Mountain Bike is equipped with tires and tubes that may be inflated up to
30 PSI. I would suggest inflating to a pressure that feels comfortable to you. However, 10PSI does seem a little low. Try inflating to 20PSI and see how the bike rides and feels.
answered 8 months ago