How do I compare the gearing of these two bikes?

[Boris Bike]

Apologies if I have this wrong - quite new to this.

Cannondale CAADX 5 105 has a 12-25 cassette, and a 36/46 chain ring.

Boardman CX Team has a 11-25 cassette, and a 34/50 chain ring.

So does that me the Boardman has both an easier lowest gear (34/25) and a tougher highest gear (50/11)?

Thanks in advance

 

[User16625]

[QUOTE 1497868"]
if the wheel is 700cc on both bikes then yes you are correct.
[/quote]


actually the wheel size on both bikes is 622c so no, he is actually not incorrect.

 

[RecordAceFromNew]

Funnily enough, 622 is 700c.

 

[HLaB]

LOL the above

If you want a more detailed comparison you could use the Machinehead gear calculator, you are only interested in the extremes like me use the free one

 

[monnet]

Click here for gear ratio tables (the .xls has all the sizing information you'll need).

 

[gaz]

Lowest and highest gear inch for each bike
Cannondale
lowest - 37.8
highest 100.7

Boardman
lowest - 35.7
highest - 119.5

The boardman has the lowest and highest gear of the two, but maybe not the better range.

 

[albion]

"highest - 119.5 ........100.7"I don't know about you lot but I relate far better to 4.56 versus 3.83 (50/11 and 46/12).

 

[GrasB]

"highest - 119.5 ........100.7"I don't know about you lot but I relate far better to 4.56 versus 3.83 (50/11 and 46/12).

I have one bike with a 700x23c drive tyre & a the highest gear is 4.58, another bike has uses a 650x23c tyre for drive with a top gear of 4.91. On which bike will I spin out first on... & how did you work it out?

 

[Boris Bike]

Thanks all. I'm off to count teeth on my current mountain bike to see how they compare - although I can't get into the top gear on the cassette, and the chain ring needs a bit of assistance from my shoe to drop down to the bottom

 

[gaz]

I have one bike with a 700x23c drive tyre & a the highest gear is 4.58, another bike has uses a 650x23c tyre for drive with a top gear of 4.91. On which bike will I spin out first on... & how did you work it out?

 

[GrasB]

I'm guessing you worked it out then Gaz

 

[Chris S]

Don't forget that crank length also affects torque and top speed.

 

[gaz]

I'm guessing you worked it out then Gaz

yes and no

 

[albion]

<br />I have one bike with a 700x23c drive tyre &amp; a the highest gear is 4.58, another bike has uses a 650x23c tyre for drive with a top gear of 4.91. On which bike will I spin out first on... &amp; how did you work it out?<br />

<br /><br /><br />

Methinks you had best ask gaz about his 'assumptions'

 

[byegad]

Download K gear from Kinetics of Glasgow and input the numbers for each bike and your mountain bike (Launch three copies of K gear) then you can compare them easily.