jimw1960 wrote:On most bike frames 30 mph is plenty fast enough. Unless you are building on a bombproof frame and good suspension, any faster is unsafe because bike frames simply are not designed to hit potholes at 35 mph. A cracked head tube or dropout at 35 mph can easily cause death.
dequinox wrote:OSU has a solar car that can hit 70mph under full sunlight on the freeway (quoted to me by a team member and yes that is under solar power alone according to him, but hey people are prone to error.
neptronix wrote:I like my ~25mph speed for general riding, seems to work really well.
On long country roads though, i find myself often thinking about doing 35-40mph so that i can ride in the car lane when the shoulder disappears.
oBTW, I don't pay any attention to speed limits or local laws as long as I'm not a jerk out on the road. The local cops don't mind at all.
Zoot Katz wrote:It's the slower pace of bicycling that I enjoy riding in the first place.
Too fast for comfort or safety is the test I use.
That changes with road, weather, lighting and traffic conditions.
Avg. speed on the CA is usually around 21 kph. Max. speed ~54 kph. but typically closer 47 kph.
The local legal speed limit for ebikes is 32 kph. That's usually fast enough for the better roads I use. It's comfortable and within the capabilities of the machine.
Being able to whup poseurs, stinkys and gelded belugas on climbs is just fast enough to make me happy.
liveforphysics wrote:jimw1960 wrote:On most bike frames 30 mph is plenty fast enough. Unless you are building on a bombproof frame and good suspension, any faster is unsafe because bike frames simply are not designed to hit potholes at 35 mph. A cracked head tube or dropout at 35 mph can easily cause death.
I agree pushing a $300 walmart bike past 30-40mph is asking for a dangerous failure, but bicycle technology is certainly up to the task of 60+mph pothole or unexpected obstacle impacts if you choose a proper downhill machine to base your build upon.
darkshirikens wrote:...but like 40 or45 should be good on any bike with suspension those downhill bikes can take allot more...
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