Why many e-bikes are actually too big

Many people still believe that a high riding position is part of a good bicycle.
The higher the saddle, the more “efficient” the ride — that used to be the standard.

But the rise of the e-bike has changed everything.

Electric assistance has made maximum pedaling efficiency far less important. Yet thousands of people still ride e-bikes that are actually too large for their body and riding style.

The result:

• insecure mounting and stopping
• difficulty at standstill
• less control at low speeds
• increased risk of falling

And those are exactly the moments where most accidents happen.

Traditional bicycles were designed around one goal:
maximum power transfer.

That’s why riders sat:

• high on the bike
• with limited knee bend
• often stretched forward

This worked well on non-electric bikes where every pedal stroke mattered.

But a modern e-bike supports you during:

• acceleration
• headwinds
• climbing
• long-distance riding

This means we no longer need to optimize purely for efficiency.
We can finally design for something more important:

safety and control.

Many riders recognize the feeling:
stopping at an intersection and just barely reaching the ground.

It may seem minor.
But this is exactly where problems begin.

An e-bike that is too high or too long often causes:

• instability at standstill
• tension in the body
• uncertainty while maneuvering
• increased risk of falling in unexpected situations

Especially seniors and riders with reduced balance notice this immediately.

A safe e-bike is not only about brakes or lighting.
It starts with the frame geometry.

A slightly more compact frame with:

• a lower step-through
• more knee bend
• a lower center of gravity
• direct foot placement on the ground

provides:

• more control
• more confidence
• safer stopping and starting
• a calmer riding experience

And calmness creates safety.

The e-bike gives us something traditional bicycles never had:
the freedom to prioritize comfort and stability.

The motor easily compensates for the small loss in pedaling efficiency.

That means:

• a more comfortable riding position
• safer mounting and stopping
• greater stability

without making the bike feel heavy to ride.

As we age, not only strength changes — but also balance, reaction time, and mobility.

An oversized e-bike:

• increases insecurity
• makes mounting and stopping harder
• raises the risk of falling

A properly fitted bike does the opposite:

• builds confidence
• reduces tension
• keeps people mobile longer

And that is ultimately what an e-bike should do.

Every body is different.
That’s why there is no perfect standard frame size.

At Astonic, we look at:

• body proportions
• mobility
• riding conditions
• stability needs
• existing physical complaints

The result is a bike that not only rides beautifully, but feels safe and natural.

Many e-bikes are still designed according to outdated cycling principles that no longer match modern riding.

The e-bike changed the rules.
Now it’s time for design and ergonomics to change as well.

A bike should not mainly feel efficient.
It should feel safe, stable, and trustworthy.

That is what keeps people mobile longer.