Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.


Bike vs. Car Tire Pressure
#1
This is related to my last post, but I figured I should start a new one as it veers of topic.
I bought a Tire pressure gauge and I checked my car tire pressure and they all read between 29-31 PSI. The tires recommend no more than 45 PSI, while the car recommends to stay around 30 PSI. Which is fine.
But my bike tires simply read 75 PSI. Which is more than double what my car requires. So why is it that bike tires require higher level of pressure than my car tires?

  Reply
#2
I'm not that sure, but I think it has to do with volume. Car tires have a much larger volume and therefore don't hold as much pressure. Here's a similar discussion from <a href="http://www.bikeforums.net/showthread.php?t=448281">bike forums</a> that might shed more light.

  Reply
#3
Last question is it safe to pump up a bike with a compressed air machine? More specifically a compressed air machine which plugs into my car's cigarette lighter? Like this one here.
<img src="http://www.pumps-manufacturer.com/productsimages/CarAirCompressorMiniAirCompressorAirPump_44564.jpg" alt="Air Compressor" />

  Reply
#4
Air compressors will work fine... just be sure to watch your pressure gauge so you don't over-inflate your tire.

  Reply
#5
Sounds good thanks Smile.

  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Full Moon Ride - Sunshine Coast
Yesterday 10:46 PM
Continued learnings from bikepacking
Yesterday 10:40 PM
What are the pros and cons of using a 26...
Yesterday 10:35 PM
The great thing about trikes
Yesterday 06:52 PM
Cutting Drag Watts
Yesterday 03:54 PM
How often check or change mechanical dis...
Yesterday 03:24 PM
Tour de FRANCE 2025
Yesterday 03:14 PM
Looking for an electric bike for someone...
Yesterday 03:12 PM
Tubeless vs. tubes: What are the pros an...
Yesterday 10:44 AM
Is anyone riding with music?
Yesterday 10:38 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. GirishH
23 posts
no avatar 2. Flowrider
22 posts
no avatar 3. meamoantonio
16 posts
no avatar 4. enkei
15 posts
no avatar 5. Jesper
14 posts