# How far do you ride?

A simple arithmetical comparison is insufficient here. I’m sure plenty of top riders have peaked at around 18 mph on a 24. I don’t include myself in that, but I reckon I’ve seen over 10 mph, and I am a notoriously slow and cautious rider.

18 mph on a 24 is not the same as 27 mph on a Coker because:

1. Air resistance is proportional to the square of your speed*. At 20 mph on bicycle, about 70% of your effort is expended overcoming air resistance. At 27 mph, it would be worse
2. Supplementary to that, the frontal area of the Coker and rider would be worse than a bike and rider, thus magnifying the air resistance effect.
3. The fear and caution factor. A crash at 18 mph on a 24 would be unpleasant; a crash at 27 mph on a Coker would be disastrous.
• Or the cube. I’ve heard both, with different reasons given, but it’s definitely exponential!

Air resistance is speed squared, power required to overcome it is cubed. Here’s a good explanation:

http://www.sportsci.org/jour/9804/dps.html

How far

I ride about 3 miles on my 24"…about 5-6 on my 29er…that’s without makiing it a special event.

Carey

The top sprinters in the 100 m dash get up to a top speed of around 18ish mph. John Foss would know the more exact top speeds achieved in the racing sprints.

18 mph on a racing 24" (24.333" wheel max) would require a cadence of about 250 rpm.

By the way, I think the 18 is miles not mph. Its fine to be discussing it, but is a little bit of a thread-jack

I ride almost every day. My normal, weekday ride is skills oriented and not distance. However, each Saturday we (generally Memphis Mud and I) do a wonderful, 21 mile Coker ride. It is one of the uni-highlights of the week! This route will be one of the many Fun Rides of the NAUCC 2006.

Tommy

Certainly, 18 miles distance would fit the thread better, but the expression “maxed out at 18” implies (to me) a maximum speed. I think this is what prompted this brief and entertaining diversion.

18 miles distance on a 24 is of course easily achievable by many experienced riders. 18 mph would be a challenge for all but the very best.

Is being able to ride long distances more of an issue of saddle comfort or being able to stay balanced that long? I have been riding a little over a month now, and I feel I could stay balanced no problem for as long as I want, but my butt really starts to hurt after a mile or two so that’s as far as I have ridden!

5 days per week, 3.2 km to work, and 2 miles home on my 24" Torker DX. I’ve been riding since Jul05 and am totally addicted!

Trapper,

I know where you’re coming from. I’m (a youngish) 36 year old and I’ve been riding for about 6 months. I had about a two month break due to injury (don’t ask ), so I’ve been learning for about 4 months in total.

I can ride about 500m before I have to dismount voluntarily, but I think I have made 6-700m at a stretch on a 20".

This distance is improving, so I am not disheartened, but some of these nippers (including my 8 year old son) seem to pick it up so easily!

Hooked

COOOOOL…

I usualy ride 5 miles on my bc wheel back and forth in aobut 100ft

That’s refreshing. I thought the bus was pretty empty. It’s good to know there are other folks that have to work hard for every additional yard. At the 15 hour point, my kid was riding the distance that I can just finally do. Let’s just say that we started in July too.

That’s miles per day, not miles per hour.

I suppose that whole diversion is what I get for not checking this thread for a day. I’d be absurdly impressed with myself if I could go 18mph on my 24".

I know how you feel about being a slow learner. I have been riding for 10months and I sometimes think that the ‘kids’ learn just as much in about a month.

But they don’t get such satisfaction from achieving something as we do as they haven’t had to work so hard for it. So I’m still trying to pluck up the courage to ‘jump’ onto the curb. But I’ll do it one day and that day will be wonderful.

And I’m not going to say how far I ride because this thread feels very I can (or can’t) ride further than you can. (I know it’s not really like that but I’m easily intimidated). Those of you who read my posts and have good memories and give a damn will know anyway.
(sorry I hope that doesn’t sound too sanctimonious)

Cathy

I can usually can ride as long as about 3 miles on grass, gravel, or the street.

I ride 8 km from my house to my friends each day after school. It’s kinda hilly. I do it on my numbus 20"

There are a few people that can hit 18 on a 24", but only in bursts. As I’ve mentioned in other threads I used to be able to hit 17.5 briefly back in my hardcore track days. Today’s top racers are faster so I’m sure they can hit 18. But not for a whole 100 meters, for instance.

18 miles in a day on a 24" is a good sized ride.

The world record for 100m from a standing start is 12.11 seconds (Peter Rosendahl); that’s an average of 18.47 mph for the entire 100m, which means the peak speed must have been a good deal more than that. And that was with 125mm cranks.