700c = 28"?

[Sycamore]

Hi all.

There seems to be quite a range in how tyre/wheel sizes are designated.

Essentially, I have a road bike with 700c x 25 tyres on. I'm looking at converting the bike to electric assisted, and the conversion kit comes with a 28" wheel with a motor hub.

Would this be compatible with my bike? (Btwin 500)
From looking online, some sites seem to say yes and others no. A little lost if I'm honest.


Cautious on ordering the kit and it arriving and the 28" wheel doesn't fit for whatever reason.

Thanks

[TwilightJohnny]

Assuming you are only questioning wheel diameter and not wheel or tyre width:

Yes a 28" wheel will be will be the same diameter as a 700c wheel.
It will also be the same diameter as a 29" wheel.
It will also be the same diameter as a 622mm wheel.
The 28" diameter wheel will be smaller than a 27" wheel.
The 28" diameter wheel will be bigger than a 27.5" wheel.

Yep, I think that should make it clearer!

Edited by TwilightJohnny on Sunday 19th July 09:38

[Kudos]

Sycamore said:

Hi all.

There seems to be quite a range in how tyre/wheel sizes are designated.

Essentially, I have a road bike with 700c x 25 tyres on. I'm looking at converting the bike to electric assisted, and the conversion kit comes with a 28" wheel with a motor hub.

Would this be compatible with my bike? (Btwin 500)
From looking online, some sites seem to say yes and others no. A little lost if I'm honest.


Cautious on ordering the kit and it arriving and the 28" wheel doesn't fit for whatever reason.

Thanks

Can I ask where you got the conversion kit? Thinking of getting my parents a hybrid bike but they both have decent bikes already. If there was a kit that might save some hassle

[Tabs]

If the OP doesn't come back, have a look at www.cytronex.com
Cost about a grand all in.

[Sycamore]

Thanks for the replies.

With my conversion kit, I bought a Yosepower 350w rear hub motor kit.

They're ~£390 from their website and ship from Germany, but I found someone on Gumtree selling a brand new one locally for £350.

Great piece of kit, especially when you consider the price.