Ask MBT
February 2010
Question of the Month
Dear MBT:
Hi! Let me first say I am overjoyed to have found your website as Mountain biking is my favorite thing.
I had so much fun and enjoyment this past year mountain biking in Oklahoma, that I asked for a helmet cam for Christmas. If I didn’t get one I was going to buy one myself. What I wanted was an Oregon-Scientific model that ran for around 80 dollars. I read the reviews; some were good, some bad.
Well, what I ended up receiving was a Tony Hawk helmet cam for Christmas. Although I appreciated the gift, I thought it looked more like a toy, and the picture would be poor. So yeah, I was a little disappointed.
I put batteries in it and just walked around the house with it. To my surprise, it seemed to take a decent vid. I haven’t been able to test ride this yet thanks to a little blizzard. And since I just did a complete maintenance routine on my Trek 4300, I’m not ready to take it out into the snow just yet -lol.
Anyways, I thought I would Google the camera just to see what I could find in reviews, and was led to your review (http://www.mountainbiketales.com/reviews/cam.htm). I don’t feel so bad now! THANK YOU. In fact, I found more reviews on the camera that I initially wanted - and found many more complaints on it than I suspected! Perhaps receiving the Tony Hawk cam will be a blessing after all!.
Thanks again, and I hope that 2010 will be a fantastic riding year for us all!!
- Darrel Riffle
Hi! Let me first say I am overjoyed to have found your website as Mountain biking is my favorite thing.
I had so much fun and enjoyment this past year mountain biking in Oklahoma, that I asked for a helmet cam for Christmas. If I didn’t get one I was going to buy one myself. What I wanted was an Oregon-Scientific model that ran for around 80 dollars. I read the reviews; some were good, some bad.
Well, what I ended up receiving was a Tony Hawk helmet cam for Christmas. Although I appreciated the gift, I thought it looked more like a toy, and the picture would be poor. So yeah, I was a little disappointed.
I put batteries in it and just walked around the house with it. To my surprise, it seemed to take a decent vid. I haven’t been able to test ride this yet thanks to a little blizzard. And since I just did a complete maintenance routine on my Trek 4300, I’m not ready to take it out into the snow just yet -lol.
Anyways, I thought I would Google the camera just to see what I could find in reviews, and was led to your review (http://www.mountainbiketales.com/reviews/cam.htm). I don’t feel so bad now! THANK YOU. In fact, I found more reviews on the camera that I initially wanted - and found many more complaints on it than I suspected! Perhaps receiving the Tony Hawk cam will be a blessing after all!.
Thanks again, and I hope that 2010 will be a fantastic riding year for us all!!
- Darrel Riffle
Darrel:
Thanks for the kind words. We're always glad to hear when one of our reviews helps a fellow enthusiast.
Believe it or not, our Tony Hawk Helmet Cam is still going strong after these long years (of which it was subjected to unimaginable abuse including editor Jason Giacchino’s impromptu swim into a freezing river during its first test ride).
If per chance you snag some footage with yours that you wish to share with the mountain biking world, please do pass it along and we'll get it up on our forum.
Dear MBT,
I ride on trails that have a lot of tight switchbacks that basically demand that you lock up the rear wheel to keep from blowing the corner. It seems like everyone’s always warning about the dangers of skidding but it doesn’t seem to be damaging the trails. So what’s so bad about a skid if it gets you around the tight ones?
- William Berch
I ride on trails that have a lot of tight switchbacks that basically demand that you lock up the rear wheel to keep from blowing the corner. It seems like everyone’s always warning about the dangers of skidding but it doesn’t seem to be damaging the trails. So what’s so bad about a skid if it gets you around the tight ones?
- William Berch
William:
The answer to your question is threefold. First even if it doesn’t appear to be doing damage to the corners or switchbacks on your trail, damage takes place each and every time we lock up a wheel. How so? Well have you ever grabbed a handful of brake on a paved surface, heard a squealing or dragging sound then noticed a long black trail of rubber left behind? That’s because when a wheel becomes locked up, something’s got to give until the momentum of the object in motion comes to rest. With the road, it’s the rubber of your tires that give first hence the resulting skid mark. In dirt (especially soft consistency), it’s likely that the ground will give before the rubber of your tires. Rather than shed a trail of spent rubber, a skidding mountain bike will instead drag pieces of the ground with it. Repeat the process enough and ruts form.
On public trails and especially those built by volunteers, this practice is just poor manners. Sure the accidental lockup is to be expected (like say if a deer were to dart out in front of you) but repeated skidding to clear corners is damaging to the terrain and will require frequent repair whether you acknowledge this damage or not. Mountain bikers are at constant odds with environmental groups who love to cite terrain damage in their argument against us- there is no reason to accommodate their agendas by proving them correct.
Secondly there is the issue of control. Realize that the moment a wheel stops spinning, the tire’s treads, which are designed to function in accordance with rotation, are now becoming nothing but rudders. It’s because of this that simple functions like steering become nearly impossible while locked up. It may look like a rider who rails a corner with the rear wheel locked up is in control, but in actuality he’s along for the ride the moment that tire ceases to rotate.
Finally, and perhaps the least of concern to others, is that frequent skidding is a good way to prematurely wear out tires. If none of the other reasons presented convince you to rethink your turning methods, hopefully the hit to your wallet in having to replace your rubber twice as often will.
The answer to your question is threefold. First even if it doesn’t appear to be doing damage to the corners or switchbacks on your trail, damage takes place each and every time we lock up a wheel. How so? Well have you ever grabbed a handful of brake on a paved surface, heard a squealing or dragging sound then noticed a long black trail of rubber left behind? That’s because when a wheel becomes locked up, something’s got to give until the momentum of the object in motion comes to rest. With the road, it’s the rubber of your tires that give first hence the resulting skid mark. In dirt (especially soft consistency), it’s likely that the ground will give before the rubber of your tires. Rather than shed a trail of spent rubber, a skidding mountain bike will instead drag pieces of the ground with it. Repeat the process enough and ruts form.
On public trails and especially those built by volunteers, this practice is just poor manners. Sure the accidental lockup is to be expected (like say if a deer were to dart out in front of you) but repeated skidding to clear corners is damaging to the terrain and will require frequent repair whether you acknowledge this damage or not. Mountain bikers are at constant odds with environmental groups who love to cite terrain damage in their argument against us- there is no reason to accommodate their agendas by proving them correct.
Secondly there is the issue of control. Realize that the moment a wheel stops spinning, the tire’s treads, which are designed to function in accordance with rotation, are now becoming nothing but rudders. It’s because of this that simple functions like steering become nearly impossible while locked up. It may look like a rider who rails a corner with the rear wheel locked up is in control, but in actuality he’s along for the ride the moment that tire ceases to rotate.
Finally, and perhaps the least of concern to others, is that frequent skidding is a good way to prematurely wear out tires. If none of the other reasons presented convince you to rethink your turning methods, hopefully the hit to your wallet in having to replace your rubber twice as often will.
Dear MBT,
The kids in my neighborhood all ride BMX on the streets. I was thinking about getting something like the KHS DJ 24 or Specialized P. I know these are considered mountain bikes but what’s really the difference?
- KC Tenneson
The kids in my neighborhood all ride BMX on the streets. I was thinking about getting something like the KHS DJ 24 or Specialized P. I know these are considered mountain bikes but what’s really the difference?
- KC Tenneson
KC:
Good question, jump bikes, urban, park or stunt-specific mountain bike models do look an awful lot like their BMX cousins. The truth is their role is pretty interchangeable as well but we find a few advantages to going the mountain bike route and these are: Larger wheels, a suspension fork, and usually some gearing. Of course, none of these traits are set in stone so to speak (as in it is possible to build up a fully rigid model, run smaller hoops, or convert to single speed if so desired) they do represent the primary differences in choosing a mountain bike over a BMX-specific model.
In the urban setting stunts typically consist of curb hops, manuals, and drops to concrete- exactly the type of conditions that favor a few inches of stiff suspension, powerful disc brakes, and larger wheels to clear cleanly. We say go for it. You won’t regret the decision.
Good question, jump bikes, urban, park or stunt-specific mountain bike models do look an awful lot like their BMX cousins. The truth is their role is pretty interchangeable as well but we find a few advantages to going the mountain bike route and these are: Larger wheels, a suspension fork, and usually some gearing. Of course, none of these traits are set in stone so to speak (as in it is possible to build up a fully rigid model, run smaller hoops, or convert to single speed if so desired) they do represent the primary differences in choosing a mountain bike over a BMX-specific model.
In the urban setting stunts typically consist of curb hops, manuals, and drops to concrete- exactly the type of conditions that favor a few inches of stiff suspension, powerful disc brakes, and larger wheels to clear cleanly. We say go for it. You won’t regret the decision.
Dear MBT,
Does anyone make a parking bike for bikes? I had my Intense roll on me when I thought it was secured against a tree at Whistler. Took a gouge out of my new saddle and am still a little more than mad at myself.
- Matt Geofferies
Does anyone make a parking bike for bikes? I had my Intense roll on me when I thought it was secured against a tree at Whistler. Took a gouge out of my new saddle and am still a little more than mad at myself.
- Matt Geofferies
Matt:
Been there done that! Actually a company does make exactly what you seek only rather than a complex mechanism like the one found on your car, the answer is a simple rubber strap that pulls the brake lever toward the grip. It’s aptly called the Bike Brake and comes in nine colors to match whatever sheen comes from your Intense’s frame. They can be reached at www.bikebrake.com
Been there done that! Actually a company does make exactly what you seek only rather than a complex mechanism like the one found on your car, the answer is a simple rubber strap that pulls the brake lever toward the grip. It’s aptly called the Bike Brake and comes in nine colors to match whatever sheen comes from your Intense’s frame. They can be reached at www.bikebrake.com
Dear MBT,
Regarding your review on the Turner 5-Spot (http://www.mountainbiketales.com/reviews/turner5spot.htm)… This review is practically worthless as it doesn’t really review the bike at all. This review makes it seem like you took the bike for a Sunday stroll where none of the bike’s shortcomings or limitations were encountered aside from the usual blasé stuff about acceleration as this is a 5 inch-travel bike after all. Every bike design is a compromise and those compromises are evident in some way or other and please don’t insult us with a shortcoming like “it just doesn’t climb like a hardtail.”
As for the gripes - I know of at least one publication (not American) that is more critical of the bike than you are. Though I do think the bike is very special.
- Bresson Via MTBR.com
Regarding your review on the Turner 5-Spot (http://www.mountainbiketales.com/reviews/turner5spot.htm)… This review is practically worthless as it doesn’t really review the bike at all. This review makes it seem like you took the bike for a Sunday stroll where none of the bike’s shortcomings or limitations were encountered aside from the usual blasé stuff about acceleration as this is a 5 inch-travel bike after all. Every bike design is a compromise and those compromises are evident in some way or other and please don’t insult us with a shortcoming like “it just doesn’t climb like a hardtail.”
As for the gripes - I know of at least one publication (not American) that is more critical of the bike than you are. Though I do think the bike is very special.
- Bresson Via MTBR.com
Bresson:
The trouble here is that many of our specific gripes had more to do with the spec of the borrowed bike we reviewed then the characteristics (or flaws) present in the frame itself. It’s a bit of a different story if we’re looking at a complete bike that will be spec’ed the same for everybody. In that instance, it’s easy for us to say something like “the fork is simply too soft for this chassis” or “the stock stem is far too long, replace it with a shorter unit with increased rise for sharper handling).
In this case, the specs that didn’t tickle our fancy weren’t the fault of Turner so much as they were the component choices of the friend of ours who let us borrow the bike. Being several inches taller than the average height of our test riders, we realized that were we to order the bike for ourselves, the spec sheet would read quite differently. As such we tailored our review to focus on the characteristics of the frame rather than the build. Which leads us to our next letter…
The trouble here is that many of our specific gripes had more to do with the spec of the borrowed bike we reviewed then the characteristics (or flaws) present in the frame itself. It’s a bit of a different story if we’re looking at a complete bike that will be spec’ed the same for everybody. In that instance, it’s easy for us to say something like “the fork is simply too soft for this chassis” or “the stock stem is far too long, replace it with a shorter unit with increased rise for sharper handling).
In this case, the specs that didn’t tickle our fancy weren’t the fault of Turner so much as they were the component choices of the friend of ours who let us borrow the bike. Being several inches taller than the average height of our test riders, we realized that were we to order the bike for ourselves, the spec sheet would read quite differently. As such we tailored our review to focus on the characteristics of the frame rather than the build. Which leads us to our next letter…
Dear MBT,
Hello all, I got a chance to test ride the 2010 5 Spot at the Corba Fest. It was equipped with SLX components, a Fox Vanilla fork and platform pedals. I took it out on a circuit trail ride to test it on the single track. At first I thought I was still riding my own bike and was thinking after hearing the hype and great reviews, what is so special about this bike? The shifting pattern was the reverse of mine so after I got used to shifting and got it into the right gear on the climb I really found out. This bike climbed like nothing I have ever ridden! Up the hill with so easy even with platforms!
I didn’t like the Fox fork but the bike itself was amazing! What’s all this (in your critique) about long top tube? The bike probably didn’t fit your short torso. It felt fine to me. If it’s too long go shorter on the stem. I have an AM bike and the cockpit felt the same, very comfortable. And no I didn’t feel like my head was a bowsprit sticking out front into the wind! You most have a really long head.
- Wayne Via MTBR.com
Hello all, I got a chance to test ride the 2010 5 Spot at the Corba Fest. It was equipped with SLX components, a Fox Vanilla fork and platform pedals. I took it out on a circuit trail ride to test it on the single track. At first I thought I was still riding my own bike and was thinking after hearing the hype and great reviews, what is so special about this bike? The shifting pattern was the reverse of mine so after I got used to shifting and got it into the right gear on the climb I really found out. This bike climbed like nothing I have ever ridden! Up the hill with so easy even with platforms!
I didn’t like the Fox fork but the bike itself was amazing! What’s all this (in your critique) about long top tube? The bike probably didn’t fit your short torso. It felt fine to me. If it’s too long go shorter on the stem. I have an AM bike and the cockpit felt the same, very comfortable. And no I didn’t feel like my head was a bowsprit sticking out front into the wind! You most have a really long head.
- Wayne Via MTBR.com
Wayne:
Indeed, the bike displays very impressive climbing prowess. As we responded to Bresson above, the trouble with reviewing a custom bike like this is that we’re forced to evaluate it with the spec sheet of the person who purchased it (which is why we prefer testing units directly from the factory, though this option isn’t always possible).
In this case, you are absolutely correct in suggesting a shorter stem to remedy the lengthiness of the top tube. Again though, this wasn’t our bike to make component swaps on at will.
Additionally, and in keeping with the theme of testing the frame rather than the build, the sensation of leading with your head is due to the reach to the bars. Unlike most contemporary All-Mountain designs, which tend to favor an upright riding position with the rider’s weight fairly centered in the chassis, the 5-Spot retains the trick of yesteryear’s hot cross country set-up in that it stretches its pilot pretty far over the top tube while distributing the bulk of the rider’s weight bias over the rear. It works great for sprinting but definitely compromises descending prowess.
Indeed, the bike displays very impressive climbing prowess. As we responded to Bresson above, the trouble with reviewing a custom bike like this is that we’re forced to evaluate it with the spec sheet of the person who purchased it (which is why we prefer testing units directly from the factory, though this option isn’t always possible).
In this case, you are absolutely correct in suggesting a shorter stem to remedy the lengthiness of the top tube. Again though, this wasn’t our bike to make component swaps on at will.
Additionally, and in keeping with the theme of testing the frame rather than the build, the sensation of leading with your head is due to the reach to the bars. Unlike most contemporary All-Mountain designs, which tend to favor an upright riding position with the rider’s weight fairly centered in the chassis, the 5-Spot retains the trick of yesteryear’s hot cross country set-up in that it stretches its pilot pretty far over the top tube while distributing the bulk of the rider’s weight bias over the rear. It works great for sprinting but definitely compromises descending prowess.





On the Pedals
The Daily Grind
Over The Bars