Mountainman44

No problems, in fact a very good and consistent correlation between my iPhone 5 and my riding partner's iPhone 4 in terms of distance and elevation.

Mapmyride is an app that you can load on your smart phone, whether you use iPhone, BB or Android. http://www.mapmyfitness.com/imapmy/ They have a premium option that will allow someone like wifey to track your movements on the internet, so this requires your data connection to be active while riding. It is one of the better training tracking apps out there, but not as good as Strava for sure. I have not been able to find any live tracking feature setting on Strava though.

He is running 29 X 2.35 tyres and CO2 bombs are not always reliably powerful enough to seat larger tyres like this due to the larger volume in the tyre. Also not sure of all bombs are created equal? I have had bombs that would just barely properly inflate a large 26er wheras others seem to do a better job....

As Bianchi says, not an exact science, and but I always have success with a compressor as long as it has enough pressure to really kick the tyre into place. If not, you can spend hours trying to get the tyre to seat.Good luck!

While it's nice to hear that Goodyear is developing self-inflating tires for cars, where does that leave bicycle riders? Still pumping, presumably? Well, not if they're running PumpTires on their steed. As its name implies, the PumpTire is designed to automatically pump air into the inner tube, using the compressive effect of the tire meeting the ground as it turns. Once the tube reaches the desired pressure, the pumping action ceases. Invented by San Francisco's Benjamin Krempel, the prototype PumpTire system consists of a tire, an inner tube that clips into it, and an air valve. Air is drawn from the atmosphere through the one-way valve, which protrudes from the rim like a regular valve stem. Instead of going directly into the inner tube, however, the air goes into one end of a lumen, which is a small tube running along the center of the tire. As the tire rolls against the ground, the lumen is compressed, forcing air out of its other end and into a second valve - this one on the inner tube. The resulting absence of air in the lumen creates a vacuum effect, drawing more air in through the first valve. That valve is able to sense when the proper pressure has been reached, at which point it stops drawing in air. Once the pressure has dropped again, due to the seepage that occurs with all tubes over time, the air intake resumes. In this way, if the product works as planned, cyclists need never have to check or "top up" their tires again. There are presently two versions of the PumpTire planned for the marketplace. The 26 x 1.5-inch City Cruiser is intended for casual cyclists, and will keep the pressure at a preset 65 psi. The 700c x 28 mm City Pro, on the other hand, is intended for more performance-oriented urban cyclists. Its maximum pressure is set manually by the user, and can range from 65 to 95 psi. Both tires can also be manually inflated using a pump, and will be available with Presta or Shrader valves. While the valve appears to be rather large in the illustrations, it should reportedly be smaller by the time the product reaches stores.

Bar end mounted rear view mirrors!!

Dang!!!! That's quick! I bet you this guy can also change an FL between strokes.

Good idea. If the cassette is too worn, you will immediately experience chain slippage or jumping under strain, especially on your favourite gears that will be more worn out. I had some guru at a bike shop tell me to just carry on riding until the chain stretched enough the jumping stopped. It didn't work, eventually broke the chain going up a steep hill. If the new chain slips, change your old cassette as well and save yourself a lot of cr@p.... absolutely no fun to have a chain jump and slip while you are trying to power up a steep incline. 'nuff said.

I had a similar problem on my left foot only. It only started after riding about 50 km on the MTB or after about 5 km running. I ignored it to my own detriment. I will spare you the end result of my diagnosis, but it includes at least three months ZERO CYCLING. I had read that shoe fit, cleat position, and other issues could cause this and I figured I was clever enough to self-diagnose. I was wrong. If this persists, please have a medical check-up done sooner rather than later. Good luck in sorting this out!

Hmmmm, I am sure Prince Harry would love to DRILL this squad!

The Scuzzbucket probably isn't even in Kimberley anyway. It is just a good excuse to be so far out in the sticks because it is too inconvenient for most to drive out to Kimberley to check out a bike. Even if he could supply you with a working landline number in Kimberley with street address, he could still simply have his landline doing call forwarding to his cell phone wherever he is.

I have had two of these growths from different bikes after long term use with Stan's. There must be something that makes the Stans crystallise around some impurity or dirt in the tyre. If you leave it in the sun, it will gradually shrivel up to a much smaller piece of rubber. I must admit yours is not necessarily bigger but it is certainly thicker .... or maybe it is just an optical illusion caused by your deformed thumb?

Flying Scotsman Graham Obree intends not only to break the human-powered vehicle land speed record, but also hopes to be the first person to break 100 mph (161 km/h) In 2012, in the days leading up to his 47th birthday (on Tuesday), Obree has again been doing things the hard way. This time he's building a prone bicycle, which isn't unusual for the land speed record. That he's eschewing external help is hardly surprising either, given his history in the sport, but there are other obstacles to overcome. Not least of these is missing the window for a scheduled meet at Nevada's Battle Mountain because the bike, Beastie, you'll recall, isn't quite ready. Now Obree has the task of finding an alternative venue in the UK, preferably an airfield with a 2-mile runway made of fast tarmac, with no joins or blemishes. But this means doing without some of Battle Mountain's luxuries: a 6° gradient in the rider's favor and a 5000-ft (1500-meter) altitude, reducing drag. "In an engineering journal I read, they said that Battle Mountain is worth 156 watts extra in energy," he told Humans Invent. "And that is just the slope. Then the surface is actually purposefully built for the record attempt, so that has to be worth another fraction in terms of surface resistance." Though Beastie is yet to be completed, Obree says he's "really happy" with its aerodynamics. In fact, the bike in general is every bit as innovative as Old Faithful. Critical to the design is a compact frontal area, which necessitates an incredibly contained riding style. He claims this is one of the smallest bikes every created as far as frontal area goes. "The feet just miss each other on the way past which means the width at the back is the minimum possible so the vehicle can be tailed of short," Obree told Humans Invent "Also it means the knees are closer together and partially share the same space at the bottom of the stroke which means that the skin can be tucked in closer, and that means less frontal area." This sacrifices the direct drive of the rear while, necessitating a series of chainwheels—the theory being the loss in efficiency in the drive mechanism will be more than offset by the aerodynamic advantage. And the pedaling action isn't circular, but a push/pull arrangement which, as Obree said, reduces the need for the rider's knees to dip, also boosting the aerodynamics. Perhaps the most eye-catching feature of Beastie is its clear skin, and for this Obree did receive some outside help: from The Glasgow School of Art. He says he wants people to "see the engine," by which he means the rider. It sounds like only tweaks remain to be made. A shoe-plate here, an elbow guard there: potentially crucial tweaks when seeking to break 100 mph, to be sure, but nothing that affects the principle behind the bike. A time and place for the record attempt are yet to be confirmed, but there's a limited window before the British winter sets in. "To be honest, I am happy it will be a British attempt now. Designed in Britain, made in Britain and broken in Britain," Obree told Humans Invent. "This also means that we can go for the world human-powered land speed record, and also the British human-powered land speed record." Of course whether he will crack the 100 mph mark, or even the record, remains to be seen. But he's clearly set his mind, and, more importantly, his will to the task, and that usually means only one thing. I certainly wouldn't bet against him.

I have had cases where I could not get a good seat / seal even at the local BP service station. The ultimate solution is to have a COMPRESSOR with a decent volume storage tank like I have seen at the LBS ( where I had to go with the aforementioned BP case), that works like a charm.

CO2 is supposed to be a relatively inert gas. I was quite disturbed by this comment because I use CO2 with Stans constantly.... so I opened up one of my Stan's sealed tires that I seated with a bomb two weeks ago, and I can confirm that the Stan's sealant is still in perfect shape. I suspect it was not the CO2, but rather something else that screwed with your Stans.