Monday, February 22, 2010

Turn Up The Base!

So, you just had your new board waxed, and people are still passing you on the flats. What the hell? All bases are not created equal, and which type you have can drastically dictate your top speed.

There are two basic types of bases, sintered and extruded. These are basically sheets of p-tex several millimeters thick that constitute the bottom of your board. Both are available in various densities/ hardness, and are porous to absorb wax.
Extruded: The less expensive of the two. This will be on a board designed for someone starting out, or a very casual rider not looking for high performance, or someone who wants a very low maintenance board. Think of an extruded base as coming from a block of p-tex, and a thin layer is sliced off, making the base. Imagine a cheese slicer. These bases are usually found on lower end boards, usually the under $400 categories. While an extruded base is not designed for speed, it is easy to repair and requires less maintenance, making it appealing for entry level boards and many jib- specific models.
Sintered: Ok, take that sheet of p-tex and slice it lengthwise, making long spaghetti strings of p-tex. Now compress them back together into a sheet for the base. In a nutshell, that is a sintered base. This process makes them harder (higher density= faster) and more porous (better wax absorption) than its extruded little brother. Not surprisingly, this raises the price of the board. Most board with sintered bases start at $400 or so. Any board considered a "high performance" model will have a sintered base.

How hard is it? Like I said, both sintered and extruded bases come in different densities/ hardness. The harder the base, the faster it will run. A softer base, while more susceptible to damage, is also easier to repair. Most companies use a number system to indicate the hardness of the base: the larger the number, the harder the base. An extruded 1500 base is much softer than, say, a sintered 4000 base. If you had two identical boards, but with those two different bases on them, the sintered one would run much faster.

A Few Extras
There are many things that companies can add to the base to make them faster. Bases with graphite built into them are among the most common. Basically, during the sintering process, graphite is added, to reduce friction and increase speed. A wax impregnated base, like it sounds, has wax built in. This allows future waxings to bond better with the base, which not only speeds things up, but you won't need to wax quite as often. Another benefit of the wax infused base is that it adds density to the base, making it harder as well. Some other exotic sounding stuff you'll find in higher- end boards; gallium, indium, Teflon, zeolit. Sounds tech? It is, but basically all these things serve one purpose, reduce friction to improve your glide; go faster!

Lastly....
If you don't know the importance of waxing, check out my other posts! Waxing makes a HUGE difference in how fast your base will be. Again, an extruded base does not absorb a ton of wax, so it is not as noticeable as a sintered base, but a good wax job on a high end sintered base is a wonderful thing! No more getting stuck on the flats, no problem getting enough speed for that 50 foot kicker, no more getting passed by 9 year olds in ski school..... it's on!

Tuesday, February 2, 2010

Can You See the Light? Or, What's Up With Goggles?

Sure, you gotta look steezy, but wouldn't it rule if your goggles actually helped you see BETTER? First, let's talk about the actual goggles; we'll get into lenses in a bit. Goggles come in a ton of sizes and shapes, mostly so that one will fit that weird, gourd shaped head of yours, so try as many on as you need to find a good fit. They should be comfortable, of course, and the foam should create a seal around your face. Gaps are not good. Pay special attention to the fit around the nose, as this is where most people have problems. Speaking of foam, the better goggles have two or three layers of foam for comfort, usually with fleece against the skin. If you sweat a lot, are sensitive to foam, or are looking for maximum comfort, look for this feature. If you do sweat a lot, get the largest goggle that fits your face; the more air around your eyes, the less likely fogging will occur. Another fog preventer is venting. Check to see if the frame has foam or mesh vents on all sides of the frame.

The Lens: There are two types of lenses.
1. Cylindrical. This is the traditional shape that curves around the face from ear to ear.
2. Spherical. This is the newer style. Like a sphere, it curves around the round shape of the eye, in all directions. This causes less distortion looking through the lens, as well as creating more air space inside, which helps reduce fogging. Also, more expensive.
Any decent goggle (say, over $40 or so) will have a dual lens. If you look at the goggle closely, you will see that there are two lenses in front of your eyes, a few millimeters apart. This is to help prevent fogging. You do not want a single lens goggle. Believe me.

Lenses come in many different colors, and that's not just for matching outfits, really! Mirrored lenses cut glare in the sunlight, help with the lurk factor since nobody can see your eyes, and look cool, but generally do not work well in low or flat light conditions (cloudy, snowing, nighttime). For bright, sunny days, obviously a darker tinted lens is nice. Something that lets in 15% to 30% of the light. For an all around tint, usually the 25%- 50% range will work, depending on what your weather is usually like. A good range for stormy, flat light conditions is 50%- 85%. This is usually a little too bright for sunny days. At this point, you might be thinking that it would be a good idea to have two pairs of goggles, or at least an extra lens. Extra lens? Yup, if you didn't know, most higher end goggles have lenses that can be replaced.

Lens Tints. Believe it or not, a different color lens can have a huge impact on your ability to see, especially in the shade, snow, fog, or other low or flat light situations.
Sunny/ Bright Light. Brown, bronze, and gray are great for very sunny days, and a mirror will help cut the glare.
Night Riding. Clear, yellow, light rose, light persimmon, light orange. These colors help add definition to the snow, making it easier to spot dips and bumps, along with generally adding to depth perception.
Cloudy, Snowing. This is probably the most important one. You can't see the ground, the bumps, anything. I find a rose tint to give me the most definition, but persimmon and orange are good too. No mirrored coatings are needed here. A medium darkness tint (say 30%-50%) should give you a good all-in-one lens if you are only going with one lens. This will make visibility pretty good in most conditions.

What the hell? So, based on this info, you should be able to find the perfect goggle/ goggles for you. Need more guidance? That's why I'm here. When looking for a new goggle, I first find something that fits. I sweat like a pig while riding, so I need the largest, spherical frame that will fit on my face. Also, I do some homework to find a style that will be around for a few years, so I can keep replacing the lens as needed (find a style that has been around a while, has pro models, or something you see a lot of people wearing are good indicators). I make sure that the lens tints that I prefer are available for that goggle. As I do not like to change lenses in the parking lot while there is shredding to be done, I own two pairs of goggles. My sunny, Bear Mtn, general lens is a mirrored rose, with around a 20% light transmission. This is great for sunny and mostly sunny days, and still works when the shade hits in the afternoon. For clouds, snow, and general nastiness, a non- mirrored rose lens with around a 60% light transmission.

Wear a helmet? If you do, make sure the goggles fit with it! The top of the goggles should be flush against the top lip of the helmet. Be sure the strap is long enough to fit as well (some goggle companies have longer straps or 'extender' straps available to accommodate helmets). Also, the helmet should not be overly pressing the goggles down on your nose. Comfort is what we're looking for here folks.

If you wear goggles all the time, it might be worth it to you to spend extra for a really nice pair of goggles. I replace the lens every year or two, and the frame usually lasts 4- 5 seasons. For the most part, you do get what you pay for, and a premium goggle usually will start around $60 and can easily go over $120. Hopefully now you will be looking good as well as seeing good! More shitty puns? I'll see you on the slopes!