1. Get a bigger motor
2. Get more aero
Other factors are likely second order, but important for pros.

Wind resistance increases as the square of "airspeed" so wind resistance at 19 mph is 60% greater than at 15mph. the really bad news is that required power (Power = Force x Velocity) increases as the cube of velocity (zero wind, flat). So ignoring second order effects and assuming you're already aero, you'll have to bump up your power by a factor of 2.

There is some good news. If your average is over a hilly course your average is being greatly affected by your climbing speed. Climbing occurs at a lower speed and the Power required approaches a linear function of velocity.

I feel like I'm back in physics class in high school. Lol

Yesterday I rode 7 miles as a warm up to a local cemetery that is flat and wide open. It was clear, 48 degrees with 15 mph winds. I have a .8 mile 6 turn circuit that I ride, which simulates crit race courses, that also has a sweeping curve that is the same as a straight. Yesterday I kept my HR in mid-Z3 for the 1 hr interval workout and concentrated on being low into the wind and smooth into and out of the turns. My wife drove our car over to the site with her bike in the car and then at rode her pace during my interval. It was probably coincidence, but I was riding two laps for her one. We always seemed pass around the same spot then as the hour interval progressed she started to pick up about 30-40 meters on my pace when we passed. During my interval I did have to ramp it back in order to keep my HR within the Z3 range. I tend to get into a race mode and attack too much. In review of my power files I averaged 20.7 mph and 254 watts on the interval with an average HR of 146 bpm. During my cool down I rode with my wife at her 10.4 mph pace and isolating the segment from the workout found that it took me 53 watts to ride with her at 10.3 mph. Last night for me it took around 5 times more power to ride twice as fast as her pace. BTW, my wife had fun since it was on a closed course, she didn't mess up her hair with a helmet, and she said she got a good cardio workout.

All I know is when I hit the No Zone, I'm doing it right.

Yep, but the most important element, the motor, ain't physics and a good deal of HTFU is involved.

A'Jet and AZTR: Since other factors are important to us, we seemed to have earned a BF upgrade to pro status. Who would have thought.

I am not so sure about the good news vis a vis hills on the course. Even though at lower speeds aerodynamics is not as great a factor, hills are a time killer and that is especially true for bigger riders. And due to the reasons you say state about moving a volume of air out of the way at higher speeds, it is difficult to regain the lost time on the downhill. As I posted earlier, the best energy management it to use more power on the hills and less on the downhills. z4/z5 on the climb and z3 on the descent.

At the risk of getting a lecture by AzTallRider; yes, your perspective does change. After a few years of long rides I got so bored I considered hanging it up, actually got into MTBing to make it more interesting. I am back road riding, but anything more than a few hours is almost unbearable...shear boredom. So my advice is to enjoy pushing your speed and distance but watch out for that feeling you are on grind, what's on the otherside is the perspective you are just wasting time.

Just in case AZTR does not read this here is my 2 cents.

I rode my track bike at the track on Tuesday doing motor pacing. Wednesday, I rode the trainer and did a simulated track workout that they are doing at Velo Sport Center velodrome in the evening sessions this week and Thursday, I rode with my wife on our local ride and did some power efforts on the hills. Today, we are riding TT bikes on the TT course working on power intervals. If I always rode the same equipment over the same course, as much as I like to ride my bike, it would certainly start to get boring.

IMO, riding a mountain bike or a fixie is a great way to keep the sport fresh and shock your body so that growth can continue. The mental part of cycling (focus, perseverance, motivation and desire to improve) can be just as limited as oxygen in the muscles to power the bike.

I agree with the changing things up. There are so many variables to our activity that are so easily applied to our advantage.

Hermes, there was a thread on this or other BF forum that I'd argued the use of a mountain bike onroad to help with power training. The techno engineers about shot me out of the saddle saying it was mostly in my head. Pfffft. If you have a 15lb CF bike and you need some variety, toss in a MTB interval training ride....shoot, every MTB ride is interval....and see how you love that CF bike again

OldsCOOL; This is BF...what do you expect. The only thing I see with mountain bike riding as a negative is too much hill climbing and not enough high cadence work in the drops. Let's face it. Unless one rides a mountain bike next to a river, one is going to have to climb a lot. If you climb a lot, you will get good at climbing. IMO, the power meter takes away the aspect of riding a heavy bike for training and then switching to a light bike for events such that it feels easier. If you do power climbing intervals, the weight of the bike, road conditions and wind are taken out of the equation.

Have you thought of getting a Harley?.....all you have to do is work on your wrist action after that!

This thread is three years old...

What's old is new again.

I have not seen the O.P. on here in a loong time. Maybe he got to fast for us.

+1

Why should anyone have to justify their desire to increase their avg. speed? To me speed feels good. To those who are happy at 15, I'm happy for you. Start your own thread, if so inclined.


On increasing ones speed... a twist on Le Mond's famous words. You have to make it hurt more. Many ways to do that. Riding with slightly faster riders is great if you don't let it get discouraging. Intervals help, pushing yourself against a speedometer will definitely help. Just make sure you are healthy enough to do it.

When I was a young racer, I had to do most of my training solo. I had a stopwatch taped to my bars. Used cadence, heart rate and checked myself for time between known distances (like mini time trials) though out my rides. AI loved the rides, and I loved the feeling of getting stronger and faster.

As I have started riding again I sometimes mentally count my cadence in a particular gear to just push myself. Different purpose riding now, but I still want to feel "fast" for my age and health.

I'm such a techno geek, that I will probably get an ant+ power meter at some point. To some silly, to me fun. and that's the point. I enjoy it.


Ride on, ride on.
Cheers, Eric

Ride with those that are faster than you. You will become faster quickly, or go home alone.

In my 50's I would average around 22 - 23mph. At 73 I can no longer do this unless in a group. The major thing I have found other than trying to ride 200 mi weeks with a lot of climbing with intervals thrown in is to go to the gym and use weight machines, especially quad and hamstring machines. Do quite a few reps as opposed to few at max output. Power will increase along with power endurance. We are all different but I do 40 reps at just under 400 lbs. on quads and hamstrings at around bicycling range of motion settings. I still have a few Strava firsts in 65+ but admittedly they disappear as I age and have to take meds which lower my max heart rate.

I'm not sure if he got faster, but I did look at a few of his later posts and it seems he went to a Sirrus and then a Domane Di2 Ultegra, so I think he is doing fine at whatever speed he is riding.

That is always an issue with a 3 year old thread that gets resurrected. The OP has moved on with life and the battle rages on behind.

John

I agree! The ratio of power improvement to speed improvement is a cubic function. To go from 15 to 19 (a 27% improvement) you need to increase your power (all other things being equal) by (19/15)^3, which is a 103% improvement. To double your output power is a huge step up.

Amazing, to go 27% faster you need to put out 100% more power.

This

This thread has become like the "has been" bands" that play at the riverboat casinos. In many cases, an original member is not present, just like this thread and the OP who has not posted since 11/1/14.

Based on that, I hereby dub this a "Lazarus" thread.