94.7: So is there a strong group pulling away in E that is organized ???

[Prince]

Also in E. Easy to spot, look for the Welsh Dragon shirt.

[Kallie.]

What time do you guys (and gals) think we will need to arrive at the venue to make it to the start pens in time and not right at the back?

[Eldron]

Eldron, what ratio you running?

 

I'm supposed to be starting in D on my SS but will be starting with the Charity Batch around 8:18.

 

Iron will be rocking the 33x15 and I'll be on a 32x15 (I like to spin....bwahahahaha). Both on 29ers.

[Mellow]

Iron will be rocking the 33x15 and I'll be on a 32x15 (I like to spin....bwahahahaha). Both on 29ers.

 

Pity you guys arent on proper bikes. What speed will you be doing at 100 rpm ?

 

edit :

 

meters travel per minute : x = (32/15)*2*pi*(wheel diameter/2)*100

km per hour = x*60/1000

 

should be right. 29er tyre diameter around 680mm ?

 

100 rpm on 32/15 is +-27km/h

110 rpm about 30km/h

Edited November 16, 2012 by Mellow

[DIPSLICK]

Pity you guys arent on proper bikes. What speed will you be doing at 100 rpm ?

 

edit :

 

meters travel per minute : x = (32/15)*2*pi*(wheel diameter/2)*100

km per hour = x*60/1000

 

should be right. 29er tyre diameter around 680mm ?

 

100 rpm on 32/15 is +-27km/h

110 rpm about 30km/h

mellow buddy i am thinking you got waaaaayyyy to much time on your hands to be working that out

i am guessing not much going on at work today????

[Iron]

Pity you guys arent on proper bikes. What speed will you be doing at 100 rpm ?

 

edit :

 

meters travel per minute : x = (32/15)*2*pi*(wheel diameter/2)*100

km per hour = x*60/1000

 

should be right. 29er tyre diameter around 680mm ?

 

100 rpm on 32/15 is +-27km/h

110 rpm about 30km/h

 

33/15 on 29 x 2.1 tires .

 

Ratio 2:2

 

@ 100rpm = 29.9km/h

 

100km race at this pace = 3h17

Edited November 16, 2012 by Iron

[Longrange]

Good we gonna SMASH IT but as I said need to be level headed and get to the Mandela bridge in one piece...

[Mellow]

33/15 on 29 x 2.1 tires .

 

Ratio 2:2

 

@ 100rpm = 29.9km/h

 

100km race at this pace = 3h17

 

have you measured the wheel circumference ? what is the ratio 2:2 you refer to ?

 

im just interested in how guys decide on the gearing

Edited November 16, 2012 by Mellow

[Gnarly]

In.

 

You ON E you stupid ****.

[Mellow]

mellow buddy i am thinking you got waaaaayyyy to much time on your hands to be working that outhttp://1.1.1.5/bmi/cdn.bikehub.co.za/forum//public/style_emoticons/default/eek.gif http://1.1.1.5/bmi/cdn.bikehub.co.za/forum//public/style_emoticons/default/eek.gif http://1.1.1.5/bmi/cdn.bikehub.co.za/forum//public/style_emoticons/default/devil.gif http://1.1.1.5/bmi/cdn.bikehub.co.za/forum//public/style_emoticons/default/devil.gif

i am guessing not much going on at work today????

it is friday. Luckily I have got excel open and a minute to spare

[Iron]

have you measured the wheel circumference ? what is the ratio 2:2 you refer to ?

 

im just interested in how guys decide on the gearing

 

its the gear ratio sorry , tire circumferance 2274mm

 

not sure how you got 680mm circumferance , 680 OD yes .

[jcza]

What time do you guys (and gals) think we will need to arrive at the venue to make it to the start pens in time and not right at the back?

 

I'm going to get there at 6:15

[Mellow]

its the gear ratio sorry , tire circumferance 2274mm

 

not sure how you got 680mm circumferance , 680 OD yes .

 

no,no - used 680 OD... is see with 2274mm the OD is 720mm that give 29.9km/h

[=Bones=]

Um, probably black cube kit. I will be riding a yellow Raleigh...

 

Will definitely keep an eye out for you.

... tisk tisk, cube kit and you riding a Raleigh, thats just off sides

[Ryan]

... tisk tisk, cube kit and you riding a Raleigh, thats just off sides

 

I know!

 

Cube kit was free and I really like it...

 

Maybe one day when I am big I will buy the matching Cube bike!

[Eldron]

 

 

Pity you guys arent on proper bikes. What speed will you be doing at 100 rpm ?

 

edit :

 

meters travel per minute : x = (32/15)*2*pi*(wheel diameter/2)*100

km per hour = x*60/1000

 

should be right. 29er tyre diameter around 680mm ?

 

100 rpm on 32/15 is +-27km/h

110 rpm about 30km/h

 

You left out the tyre - outer diameter with tyre is 730mm on my SS with a 2.1 tyre. 730mm is just under 29" which is where the "29" in 29er comes from :-)

 

So....circ is 2.29m

 

I reckon I'm a 95rpm kinds guy so 28km/h for me.

 

It's mostly irrelevant really though because you do more than 28km/h on downhills without pedalling and far less than that when we're kakking off on uphills.

 

I'd agree with the theory if we were on fixies though (I'd unclip on the down if that were the case).

Edited November 16, 2012 by Eldron