Feb 26, 2008

Should I skate on 110mm wheels? - Part 2

4- & 3-wheel skates

So, picking up from where I left off in Part 1, the widespread use of larger-diameter wheels on the 4-wheel platform meant frame lengths (particularly for junior and smaller skaters) could be reduced to more manageable sizes without any loss in rolling performance. By 2007, at World Championship-level a wide range of 4-wheel frame lengths from 11.9- to 13.2-inches were being used, and at the beginner end of the sport, 3-wheel platforms emerged to bring further length reduction to 90- and 100mm skates.

With so many lengths available in the 3- and 4-wheel formats, there is a length to suit everybody, and together with larger-diameter wheels, a fast skate proportional to the size and ability of any skater.

Fundamental differences

But today’s ‘big’ wheels have different properties than their 76-80-84mm predecessors. 100- and 110mm wheels are capable of higher top-end speeds, but require more energy to accelerate to those speeds – as well as higher levels of technical discipline to make the most of those characteristics. A stronger skater with good technique can leverage their strength and power to accelerate large wheels up to their top speed, and take advantage of their ability to maintain that speed. A weaker skater may fatigue themselves trying to accelerate the larger wheels, and so not achieve the resultant speeds the wheels are capable of.

Comparing properties

To broadly compare ‘larger’ and ‘smaller’ wheels directly:

Larger wheels:

  • Higher potential top speed (if you have the strength, technique, conditioning to reach it – perhaps repeatedly as necessary)
  • Harder to accelerate
  • Reduced footspeed
  • Increased weight
  • Increased height = more movement to achieve a given angle with the road
  • Larger footprint (contact area with road) = more potential grip, more resistant to turning sharply

Smaller wheels:
  • Lower potential top speed (but easier to attain)
  • Easier to accelerate (acceleration from low speeds is more rapid, and repeated accelerations mid-race are easier)
  • Increased footspeed
  • Reduced weight
  • Reduced height = less movement to achieve a given angle with the road
  • Smaller footprint (contact area with road) = less potential grip, easier to turn sharply

What immediately comes to mind when looking over the above points of comparison, is what the requirements of different types of skating, or event, are. Where some require short-to-medium efforts of sustained high speed, others require extended skating at a variety of tempos with regular accelerative intervals. Depending on the type of skater you are, and the type of skating you do, your choice of larger or smaller wheels can affect whether you find the going tough, or have it easy.

Something to think about

Likewise, it is worth considering (perhaps the subject of another post) what effect, for example, just one skater in an event on 110mm wheels will have, versus what effect half of the field being on 110mm wheels will have. Just as top speeds have increased and times have dropped in recent years, the ‘shape’ of a race can be very much a product of what the skaters can do with the skates they have on. A points-race on a small track may have an up-and-down tempo and pace with a field full of 5x80mm skates (because those skates were suited to such a situation), but if half of those skaters were on 4x110mm – expect a set of frontrunners who want to wind the pace up and hold it there as long as possible, with far less dramatic bursts of acceleration.

…and remember, the speeds achievable on larger wheels are just that – achievable. Skaters need to be able to accelerate up to, and hold those speeds to make use of the skates. It is highly likely that a ‘threshold’ speed exists for each skater on larger wheels. If they skate for too long below that speed, the benefits from their heavier, taller wheels are negated and they just work themselves harder.

...back to Part 1 of 'Should I skate on 110mm wheels?'



Feb 21, 2008

Should I skate on 110mm wheels?

110mm wheels - legalized by the CIC from 2008. There was always going to be, and there has been, a lot of skaters jumping on 4x110mm skates as soon as that announcement came through.

From 76- to 80mm

When speed skating was done on 76mm wheels and 80mm wheels were available, some tried them and found situation-specific benefits from them, some did not. Some of the World's best time-trialists at the time skated on 80mm wheels but would switch back to 76mm wheels for some 300-meter events - believing their acceleration to be more rapid and their stroke rate to be faster on the smaller wheels. This went on even as late as 1995.

Soon after 5x80mm wheels became the dominant platform in speed skating, 82mm wheels were available. A handful of athletes tried these and believed in them, but the majority felt that having moved up to 80mm wheels that speed skating had found its 'ideal' wheel size. Racing changed during that time also, but with an increase 76-80mm of little over 5%, the changes perhaps weren't so noticeable.

From 80- to 84mm

Fast-forward to 2002 when one World Inline Cup team covertly employed 5x84mm as their race platform in the expanding Marathon World Cup. Just a 5% increase in wheel diameter from 80-84mm, but the long, high-speed straightline finishes of the World Cup where skaters were holding top speeds were just the situations to dramatically demonstrate the roll advantage that 5% translated into. When the 84mm secret was out, speed skaters of all shapes and sizes who had 5-wheel skates clambered to get on 5x84s. In the following 2+ years, as National and World Records tumbled, many respected voices in speed skating noted that skaters had 'done them on 84s.'

90- & 100mm wheels, and the 4-wheel platform

But the swing that occurred 2004-2006 toward 100mm wheels was a different one. Where the 76-80-84mm diameter growth had always involved 5-wheel skates and necessarily resulted in frames becoming longer to accommodate it, 100mm wheels provided a roll advantage that could be used in a 4-wheel skate - and the frame length that was 13.3-inches on 5x84 could be 11.9-inches on 4x100 (with the new 195mm mount-separation).

The advantage was twofold: increased roll at top speeds compared with 84mm wheels, and shorter, more maneuverable frames that could be accelerated more readily than their 5x84mm predecessors. With industry-thinking turned on to larger wheel diameters, 90mm wheels were also marketed, and found popular use in the 4-wheel platforms of junior skaters and some senior women - as well as some interest in 5x90mm experimentation.

...on to Part 2 of 'Should I skate on 110mm wheels?'

Feb 17, 2008

Weight & Power Training for Skating - the #1 Rule

Strength & Conditioning is not just called 'weightlifting' or 'weight training' because strength & conditioning is more than that. Strength & conditioning encompasses the entire development of the athlete and what is needed to improve physical performance. This can include strength training, plyometrics, speed and agility training, endurance and core stability. Strength training is only one part of the full picture.

Exposure and adaptation

Your body is geared for survival. It's primary motivating force for change is its progressive adaptation to whatever it is exposed to. Your body defends itself through conditioning, and conditions itself through exposure. If you want to strengthen your seated ability to pick up something heavy and place it under your chin - then work hard on your seated bicep curls. There are a lot of 'athletes' in the gym who stack up, sit down, strap in and move mountains of plates every other day. Those same people could well put their back out getting back in their car: after all, that is a 1-leg lateral dipping twist often performed with a gym-bag in your leading hand.

If you want to use strength training to get more out of your on-skate performance, forget about isolated lifts and machine-stabilised exercises. The machines that fill your gym were developed so you would seek out the newest and best, and isolated lifts and exercises are the food of bodybuilders looking to maximise the size and 'standout' potential of each individual muscle. You don't get to brace yourself against a bench seat as you push hard on your skates, nor can you hold on to the handgrips - you don't even rest your bodyweight on a bike seat. As a skater you have to stand (in a very specific position), and deliver - high power, for long durations of high-frequency repetitions, while preventing postural instability and any counter-movements that dissipate the force you could otherwise be applying to the ground. You need the recruitment of a lot of muscles, often simultaneously, in a complex movement pattern with a high duty cycle.

Get specific

Your body will adapt to what it is exposed to - and every transitional step or complementary exercise designed to 'transfer' the benefits of a primary exercise over to your skating is another outlet where potential gains can be lost. You can choose to continually try to come up with ways to transfer any strength gained through bodybuilding exercises over to your skating, or, use your head and get creative with the exercises you do in the first place.

Spend your valuable time in the gym or weight-room performing skate-specific exercises - both bodyweight-resisted and weighted. Look for compound exercises that require multi-joint movement and so more muscle recruitment, in similar firing-patterns to those required by your skating, and involve a complex core stability component (hours spent crunching and -upping are one thing, but core stability that works together with your force generation and application is exactly what your skating needs).

Feb 16, 2008

Don't forget your spare parts

Don't forget spare parts. You wouldn't forget to bring your skates to a competition. You wouldn't forget to bring the wheels you plan to skate on (well, most wouldn't). You wouldn't forget your uniform, or your helmet...

And yet...

Almost incomprehensibly, there will always be a skater or two, at any meet, who is getting around with one old wheel on their skates amongst a set of new ones. Why? Because they can't get that axle off - the head is stripped and their wrench just turns in it. Their wrench is worn out of course, an unavoidable side-effect of constantly using worn-out mounting screws that damage its hex profile. Or another skater who is wandering around with a sad face, carrying their boot and frame asking if someone can help get their mounting screw off because its become rounded. Perhaps someone who asks you to have a shot at tightening their mounting screw because their frame keeps coming loose every time they skate (and it will be because the screw head is rounded and can't be tightened enough).

Then the prepared skaters get hit-up by their friends for their spares. Spare wrench, spare axle, spare mounting screw...

Not cool.

Skates need fastenings and tools just like they need components. Frames, boots, wheels and bearings are no use without mounting screws to hold them together, axles to assemble them, and wrenches to adjust and change them. You don't risk your safety or performance by racing with worn-out wheels that are close to failure, so don't risk damaging your skates with worn-out bolts, axles and tools.

Tip

Keep more than one wrench in your bag - and keep them sharp (so they don't damage screw and axle heads) by grinding the worn end off from time to time on a bench grinder. Keep 4 spare mounting screws in your bag - and be ready to change them onto your skates if your existing screws become worn, rusted or if their heads have a loose fit on your wrench. Keep a spare axle or two as well - your skates just won't perform well, and neither will you, if you have to leave a wheel out because you misplaced an axle at the wrong time.

And if your boots have microbuckles and index straps, keep a spare one of those with you too. They're relatively inexpensive, very easy to change on/off your boot, and save you skating with what feels like a loose sandshoe on one foot if you have a crash and damage one of your buckles.

Feb 14, 2008

Just like Chad?

Insanity is doing the same thing over and over, and expecting a different result - Albert Einstein said that. Einstein was a German-born American Physicist, and that, one of his more quotable quotes, like his theories, was right on the button.

But you've arrived at what purports to be a skating website? A faster skating one at that (because let's face it, faster is almost always better) - so what am I doing opening with a quote from Albert Einstein himself?

Chad Hedrick (you know the guy, 50-time World Inline Champion and now Olympic ice Champion as well...) showed the World the effectiveness of what - during his Junior days - had been termed his ‘terrible technique’. Within a few short years (and a lot of over-slo-mo'd videos) of his 1994 World Championship debut, the speed skating world was ‘doing the Chad.’ It was a revolution where almost nothing happened – nobody but Chad (who was doing 'his thing' already) up-ended the World rankings, and nobody seemed to learn anything that saw them become devastatingly more efficient on their skates and dominate the competition… the World just looked like Chad.

'just' like Chad?

50 world titles and 8 years later (by Belgium 2002 and Chad's last stand), few skaters had learned enough about the key ingredient to the Double Push to make any real inroads on Chad’s success. We double-pushed because Chad did, the 'best' DP'ers were said to be those that were most 'like Chad' while few were getting Chad-like results.

Were we doing something wrong?

I think so.

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