Posts tagged ‘ibike’
Actually, the broken pedal happened about a quarter of the way through the race, and the awesome SRAM mechanics had me up and running with replacement pedals to hop back into the race on the next lap. I was placed at the back of the pack but was able to move all the way to the front by the end of the race. There was one big wreck on the backside of the course with 3 laps to go. The course went through a couple blocks of houses with nice grassy yards which turned out to be escape routes for riders in that wreck and also when getting pushed out going into Turn #5. That is one of the visual images from the race that will stick with me — a rider going off the course and riding down a small embankment into somebody’s yard and then out the other side to hop back on the course!
A break of three escaped with about 10 laps to go in the race? I ended up 33rd which meant I was 30th in the field sprint. I fought hard for position, but cramped coming out of the last turn. I had a good wheel to draft though and was able to coast with only a few pedal strokes behind a large, fast rider to the finish. Only 9 more days of racing left!
And here are all the stats …
Strava map of the Thiensville criterium course. Interactive data available here on Strava – http://app.strava.com/rides/756346
Name Dist Speed Power HR Time 1 lap 0.9 mi 25.6 mph 341 watts 160 bpm 0:02:06 1 lap 0.9 mi 27.8 mph 450 watts 170 bpm 0:01:56 1 lap 0.9 mi 27.8 mph 417 watts 171 bpm 0:01:56 1 lap 0.9 mi 28.8 mph 439 watts 172 bpm 0:01:52 1 lap 0.9 mi 27.5 mph 394 watts 172 bpm 0:01:57 1 lap 0.9 mi 28.5 mph 424 watts 170 bpm 0:01:53 1 lap 0.9 mi 23.9 mph 297 watts 172 bpm 0:02:15 1 lap 0.9 mi 9.8 mph 10 watts 160 bpm 0:05:30 1 lap 0.9 mi 27.5 mph 430 watts 167 bpm 0:01:57 1 lap 0.9 mi 28.5 mph 443 watts 169 bpm 0:01:53 1 lap 0.9 mi 28.5 mph 440 watts 172 bpm 0:01:53 1 lap 0.9 mi 28.3 mph 421 watts 169 bpm 0:01:54 1 lap 0.9 mi 29.3 mph 444 watts 168 bpm 0:01:50 1 lap 0.9 mi 27.5 mph 421 watts 170 bpm 0:01:57 1 lap 0.9 mi 28.5 mph 449 watts 168 bpm 0:01:53 1 lap 0.9 mi 28.5 mph 452 watts 175 bpm 0:01:53 1 lap 0.9 mi 28.8 mph 466 watts 178 bpm 0:01:52 1 lap 0.9 mi 27.8 mph 446 watts 175 bpm 0:01:56 1 lap 0.9 mi 29.0 mph 470 watts 175 bpm 0:01:51 1 lap 0.9 mi 28.0 mph 406 watts 172 bpm 0:01:55 1 lap 0.9 mi 27.8 mph 368 watts 171 bpm 0:01:56 1 lap 0.9 mi 27.8 mph 438 watts 167 bpm 0:01:56 1 lap 0.9 mi 29.8 mph 478 watts 178 bpm 0:01:48 1 lap 0.9 mi 27.3 mph 430 watts 171 bpm 0:01:58 1 lap 0.9 mi 27.8 mph 412 watts 170 bpm 0:01:56 1 lap 0.9 mi 27.5 mph 401 watts 172 bpm 0:01:57 1 lap 0.9 mi 27.5 mph 429 watts 170 bpm 0:01:57 1 lap 0.9 mi 28.5 mph 412 watts 170 bpm 0:01:53 1 lap 0.9 mi 26.4 mph 412 watts 168 bpm 0:02:02 1 lap 0.9 mi 26.0 mph 332 watts 161 bpm 0:02:04 1 lap 0.9 mi 26.4 mph 385 watts 163 bpm 0:02:02 1 lap 0.9 mi 28.3 mph 390 watts 172 bpm 0:01:54 1 lap 0.9 mi 28.5 mph 425 watts 165 bpm 0:01:53 1 lap 0.9 mi 28.0 mph 428 watts 165 bpm 0:01:55 1 lap 0.9 mi 27.1 mph 385 watts 169 bpm 0:01:59 1 lap 0.9 mi 26.2 mph 378 watts 168 bpm 0:02:03 1 lap 0.9 mi 27.3 mph 372 watts 171 bpm 0:01:58 1 lap 0.9 mi 27.1 mph 369 watts 174 bpm 0:01:59 1 lap 0.9 mi 26.0 mph 389 watts 167 bpm 0:02:04 1 lap 0.9 mi 26.4 mph 371 watts 169 bpm 0:02:02 1 lap 0.9 mi 26.8 mph 398 watts 174 bpm 0:02:00 1 lap 0.9 mi 27.3 mph 435 watts 174 bpm 0:01:58 1 lap 0.9 mi 28.0 mph 426 watts 179 bpm 0:01:55 1 lap 0.9 mi 29.8 mph 481 watts 184 bpm 0:01:48
And here is my iBike power data…
iBike power data for Thiensville criterium – Tour of America’s Dairyland Day 2
Finally, here is a mix of pictures from the day … some from my race and some from over four hours away in northwest Wisconsin where Kristine and the kids are enjoying a brief summer vacation in beautiful Shell Lake.
Today was the first day of the Tour of America’s Dairyland, 11 consecutive days of racing all over southeastern Wisconsin. First, the thing that probably amazed me most about today … I had to wear arm warmers and the temperature dropped into the 50s by the end of the race. Keep in mind that summer is supposed to start in a few days! Here is a picture of the temperature after the race:
Annotated map of the race. Here is the Strava link – http://app.strava.com/rides/750355
SHOREWOOD CRITERIUM - STRAVA LAP DATA Name Dist Speed Power HR Time 1 Lap 1.3 mi 26.3 mph 378 watts 163 bpm 0:02:57 1 Lap 1.3 mi 28.4 mph 412 watts 173 bpm 0:02:44 1 Lap 1.3 mi 28.1 mph 438 watts 178 bpm 0:02:46 1 Lap 1.3 mi 28.3 mph 441 watts 179 bpm 0:02:45 1 Lap 1.3 mi 28.6 mph 423 watts 179 bpm 0:02:43 1 Lap 1.3 mi 28.1 mph 417 watts 182 bpm 0:02:46 1 Lap 1.3 mi 27.6 mph 431 watts 179 bpm 0:02:49 1 Lap 1.3 mi 27.8 mph 429 watts 177 bpm 0:02:48 1 Lap 1.3 mi 28.4 mph 413 watts 180 bpm 0:02:44 1 Lap 1.3 mi 28.4 mph 405 watts 178 bpm 0:02:44 1 Lap 1.3 mi 28.6 mph 438 watts 178 bpm 0:02:43 1 Lap 1.3 mi 28.3 mph 417 watts 175 bpm 0:02:45 1 Lap 1.3 mi 29.0 mph 458 watts 177 bpm 0:02:41 1 Lap 1.3 mi 28.6 mph 443 watts 175 bpm 0:02:43 1 Lap 1.3 mi 28.1 mph 420 watts 172 bpm 0:02:46 1 Lap 1.3 mi 28.3 mph 418 watts 177 bpm 0:02:45 1 Lap 1.3 mi 27.1 mph 388 watts 174 bpm 0:02:52 1 Lap 1.3 mi 27.8 mph 404 watts 174 bpm 0:02:48 1 Lap 1.3 mi 27.9 mph 409 watts 174 bpm 0:02:47 1 Lap 1.3 mi 28.3 mph 415 watts 174 bpm 0:02:45 1 Lap 1.3 mi 28.4 mph 423 watts 174 bpm 0:02:44 1 Lap 1.3 mi 26.8 mph 399 watts 171 bpm 0:02:54 1 Lap 1.3 mi 29.7 mph 465 watts 173 bpm 0:02:37 1 Lap 1.3 mi 27.9 mph 410 watts 175 bpm 0:02:47 1 Lap 1.3 mi 29.3 mph 450 watts 182 bpm 0:02:39 1 Lap 1.3 mi 26.2 mph 371 watts 179 bpm 0:02:58 1 Lap 1.3 mi 27.0 mph 379 watts 176 bpm 0:02:53 1 Lap 1.3 mi 27.6 mph 396 watts 181 bpm 0:02:49 1 Lap 1.3 mi 28.6 mph 437 watts 180 bpm 0:02:43 1 Lap 1.3 mi 27.6 mph 452 watts 180 bpm 0:02:49 1 Lap 1.3 mi 28.4 mph 474 watts 183 bpm 0:02:44 1 Lap 1.3 mi 30.3 mph 446 watts 187 bpm 0:02:34
And now for the race report, the course was a classic four-corner rectangular course with a chicane shortly after Turn #3. The road between Turns #1 and #2 was really rough. There were cracks, bumps, manhole covers, and more along the entire road. There was one bump high enough to launch you (and your bike) a few inches off the ground. I went over it a lot because it was one of the places to pass people. The rest of the course was pretty good pavement except for dips and bumps around manhole covers.
I started towards the front of the group and fought hard to stay there. I was a little tentative since this was my first criterium after my bad wreck at Sandy Springs. I decided to stay on the inside of all corners to maximize safety even if it meant having to accelerate hard out of corners. Still, there were a few close calls including one near-miss where the rider in front of me slammed on his brakes hard enough to lift the rear of his bike a couple feet off the ground essentially doing a reverse wheelie on his front wheel. I thought for sure he was going down and taking me with him, but he kept it upright.
Towards the end of the race, I was able to move all the way up to the very front. I think people were getting tired. With 3 laps to go, I got a bit swarmed though and never could move back up to the front. I fought to maintain my position and then passed a bunch of people at the end who had sat up. I’m hoping I squeezed into the top 30, although points were only awarded 20 deep. There is always tomorrow!
This race was in Shorewood, Wisconsin – a northern suburb of Milwaukee. Beautiful town right along Lake Michigan. Check out the pics below:
Recall the Birmingham Monsters post that I created a few months back. Well, there is a new monster in town! Not really, as I have done the climb several times, but today I grabbed the stats on it so that I could include it with all the other monsters. My rough definition of a monster is any climb which exceeds 20% for some portion of the climb. Also, a related statistic is the Scanuppia Distance (which is the cumulative distance traveled on the climb where the gradient is greater than or equal to 17%, which is the average gradient for what is arguably the world’s toughest climb – the Scanuppia).
iBike data for the Stoneleigh Dr – Oakdale monster
---------Oakdale via Stoneleigh Dr --------- Dist: 1.78 mi (0:11:04) Energy: 176.3 kJ Cals Burn: 168.5 kcal Climbing: 548 ft Braking: -13.6 kJ (-7.7%) Min Avg Max Power 0 265.5 508 W Aero 0 34.3 575 W Rolling 8 17.6 55 W Gravity -1149 182.5 467 W Speed 4.4 9.6 30.2 mi/h Wind 0.0 8.6 33.0 mi/h Elev 356 605 864 ft Slope -15.6 5.72 27.2 % Caden 30 70.7 101 rpm HR 125 143.0 158 bpm NP 287 W; IF 0.957; TSS 16.9 5/27/2011 11:48 AM 84 degF; 1013 mbar
Here is a table with all the monsters sorted by Scanuppia distance. Note that today’s monster (Stoneleigh Dr) has the highest max gradient of all the monsters.
|Double Oak Way||3.77 mi||883 ft||0.42mi||23.9 %|
|South Cove Dr||0.26 mi||229 ft||0.26mi||24.3 %|
|Hugh Daniel Brae Trail||1.97 mi||614 ft||0.26mi||19.4 %|
|Southcrest||0.56 mi||299 ft||0.22mi||24.5 %|
|Vesclub – Vestavia Dr||3.35 mi||793 ft||0.21mi||21.9 %|
|Woodcrest||1.91 mi||478 ft||0.18mi||21.4 %|
|Oakdale via Stoneleigh Dr||1.78 mi||548 ft||0.15mi||27.2 %|
|Montclair (Trinity)||0.38 mi||212 ft||0.13mi||21.8 %|
|Hugh Daniel Greystone Crest||1.36 mi||371 ft||0.11mi||24.4 %|
And here is the topocreator map of the ride I did today with the elevation profile. Note that I did three variations of the Oakdale climb with the Stoneleigh version being the first one. Also, I really enjoyed the Shook Hill climb again today from Rocky Ridge and then climbed it towards the end of the ride for the first time from the Cahaba River in what I called on Strava a “mega stair-stepper” climb.
And here is the annotated elevation profile:
Elevation profile for today’s ride – annotated
Before I go into the equipment meltdowns I had a couple weeks ago, I want to give a huge shout out to John and the rest of the mechanics at Bob’s Bikes who have kept me up and running even when I put extreme loads on all of my equipment to the breaking point. They get me back up and running again every time!!!
Also, I’m reviewing an iBike sports product below. I believe these guys have put together a product, the iBike Dash plus Power, that gives data junkies like me everything they could ever want to know about their rides and their training! Here is a review of my initial experience with the iBike Dash plus Power after a couple weeks usage and the essential features that I am using day in and day out. First, let me point you to this Velonews article which has much better pictures of the iBike. Here are my pictures: (yes, my bike is filthy, but it is supposed to rain tomorrow and what point would there be in cleaning it up before it rains!!!)
The wheel speed sensor mounted on the front fork.
The cadence sensor mounted on the non-drive side chainstay.
Setup was super easy. You simply slide the iphone into the phone booth, and the iphone automatically connects to the Apple appstore to download the free app which is the display for the power meter. Make sure you either have a phone signal or are connected to a wireless network before inserting the iphone.
You can customize each of the training screens, but I primarily keep mine on the power gauge screen shown above. This has the most important statistics for me: power, average power, speed, slope, max slope, cadence, and heartrate. Note that power and heartrate are both color-coded based on user-configuable Functional Threshold Power and Maximum Heartrate. Also, note that these statistics are completely customizable in very much the same manner as any of the Garmin bike computers.
Downloading and analyzing the data is accomplished via email. Click on Options, click on Send Ride Files, and then click Send next to the ride file you want to send. The iBike stores the email address so you don’t have to type it in each time. Once you receive the data file, save it to your computer, fire up the iBike software, and then click open. Browse for the .ibd file that you just downloaded from your email. iBike automatically reads in the file and saves it to a .csv file compatible with Trainingpeaks. Or you can analyze the ride file from within the iBike software. I personally think that the iBike software has the best graph layout of any software on the market! Here is a screenshot of a typical ride file:
iBike software ride view from top to bottom (power, speed/wind, elevation, slope)
Comparison with iBike Generation III
Prior to switching to the iBike Dash plus Power, I was using the iBike Generation III power meter. The Generation III meter is smaller, less expensive, and lighter than the iBike Dash plus Power. The larger size of the iBike Dash enables it to have more accurate wind sensor readings. Also, it allows the iBike Dash to have a beautiful large easy to read user interface. The older Generation III had an acceptable user interface, but there was no backlight so you couldn’t read it after dark.
NOTE about my iBike Dash plus Power setup: I am using my wife’s old iPhone 3G with no cellphone account activated on it, but it still works great recording all the GPS information and transferring files when connected via wireless network. But one of the big complaints against the old iPhone 3G is its slow processor, and you do notice that when running the iBike app. I would definitely recommend using an iPhone 3GS or iPhone 4, which have much better processors than the old 3G. Having said that, I am using the iPhone 3G and can put up with the slow response time especially when switching between windows.
Summary If you are a data junkie or looking for a more affordable way to measure power, the iBike Dash plus Power is the way to go. You get a sleek user interface, a handy carrying case for your iPhone, and all the data you could ever want. Contact me if you have any questions about the iBike Dash or shoot me an email to setup a ride with me where you can see it in action.
AND NOW ONTO THE EQUIPMENT WOES…
Here is a bulletted list for what didn’t make it into the picture:
- Sunday 4/3 – Broken front derailleur – I was climbing a steep grade and all of a sudden I hear a clunk/ping. I continue the climb but notice that my chain is rubbing on the front derailleur. On closer inspection at the top of the climb, I notice that there is a rivet missing from the front derailleur and so the whole derailleur is essentially split into two halves with the bottom part rubbing on not only the chain but also the front chainrings. I rode home very slowly trying not to ruin the chainrings. I ended up swapping out bikes and riding my old Trek after a little bit of work on it to make it rideable again and ended up just doing tons of climbing near my house – http://app.strava.com/rides/387911
- Monday 4/4 – Double flat – I was enjoying a slow, easy, wandering commute home with a ton of climbing when I started down the descent of Hackberry. I hit a small rock and heard the hissing sound of leaking air. Well, it turns out that it was a pinch flat (probably from not having pumped up the wheel in a week). I patched the tube and pumped it up to as high a pressure as I could with my frame pump (maybe 80psi?). I continued on my way home and then at the steepest part of the descent, which I was doing slowly, the tire went flat again. I was only a couple miles from home so I called Kristine to come pick me up, and she and Josiah came to my “rescue” a few minutes later! http://app.strava.com/rides/390412
- Tuesday 4/5 – Broken spoke – I was riding an old Cane Creek wheel because my Mavic training wheel was in desperate need of an internal hub cleaning to the point that it was no longer safe to descend at above 40mph without pedaling fast enough to keep the freewheel from spinning. The Cane Creek wheel was in pretty bad shape to begin with, but held together well on my Monday ride. Tuesday, though, I broke a spoke at the farthest out point of my ride. The rest of the wheel still had enough tension for me to ride home slowly. http://app.strava.com/rides/393157
- Wednesday and Thursday passed without incident.
- Friday 4/8 – Another flat tire – This was a puncture flat from a 10 week old tire with about 3600 miles on it. This was a rear tire which hadn’t worn through to the threads yet so I was surprised to puncture. I patched the tire up and made it home with no problems. http://app.strava.com/rides/401319
- Tuesday 4/12 – Another broken spoke – I was climbing up a hill in Mountain Brook and as I pulled over to a shady spot to pull out a powerbar from my backpack, I heard the familiar sound of a spoke breaking. I looked down and sure enough, I had another broken spoke. This one really put the wheel out of true, and I had to ride very slowly home to keep the tire from rubbing the frame. Definitely time to say good-bye to the Cane Creek wheel. $5 or best offer. Needs new spoke. Other spokes are frozen in place if you are looking to part out the hub you may need to cut the spokes off. http://app.strava.com/rides/419270
- Wednesday 4/13 – Extra wheel ride – All of this brings us to me riding home with my Mavic training wheel strapped to my back (photo above). And hopefully my run of bad luck / equipment breakdown is over for a while! http://app.strava.com/rides/424389
After hearing about all my equipment woes from the previous week, Roger hooked me up with these sweet Michelin racing tires, which I used for Dothan and Mississippi Gran Prix. Next up for these tires is Barbers this weekend and then USA Crits Speedweek (Athens, Roswell, Spartanburg, Dilworth, Sandy Springs). Also in this pic are the Rudy Project strydon sunglasses that I won from the January KOM climbing competition on Strava.
So that about sums up things, and randomly, here is my 4 year old mountain biking through the woods in our neighborhood. Check out those skills and no training wheels!
I spent a weekend of riding and racing in the North Georgia mountains. The Southern Cross race was on Saturday morning (awesome race – read my recap here), so I drove up on Friday. More specifically, I biked to work Friday morning, taught two classes, biked home, and then drove 4 hours to a cabin at the base of the Woody Gap climb just north of Dahlonega. There was still about a couple hours of daylight, so with the excitement of being in the middle of all the beautiful mountains, I got my bike out of the car as fast as possible, changed clothes right there beside the car, and went for a 2 hour ride climbing Woody Gap twice from the south side and once from the north side (much shorter climb) making it back to the cabin just after sunset. So that made for three bike rides and one four hour drive all in the same day.
Here is the iBike data for the two Category 2 (Strava) climbs –
------WOODY GAP (from Damascus Church Rd) ------ Strava: Cat 2 Dist: 9.00 mi (0:41:38) Climbing: 1816 ft Min Avg Max Power 0 260.1 387 W Gravity -520 163.6 485 W Speed 6.9 13.0 35.2 mi/h Wind 12.6 17.1 34.1 mi/h Elev 1514 2272 3242 ft Slope -5.9 3.67 8.4 % HR 133 145.7 159 bpm NP 264 W; IF 0.951; TSS 62.7 2/25/2011 3:37 PM 56 degF; 1017 mbar
------WOODY GAP (from R & R Ranch) ------ Strava: Cat 2 Dist: 6.71 mi (0:30:43) Climbing: 1651 ft Min Avg Max Power 0 289.9 608 W Gravity -1127 202.6 483 W Speed 0.0 13.1 39.6 mi/h Wind 12.5 15.6 35.2 mi/h Elev 1673 2433 3265 ft Slope -8.4 4.50 16.1 % HR 107 156.2 178 bpm NP 302 W; IF 1.088; TSS 60.6 2/25/2011 4:43 PM 49 degF; 983 mbar
And here is the graph for the entire ride:
iBike data for the entire ride.
Sunday’s ride was even better with me accomplishing what could be considered a dream of mine from over 15 years ago when a friend of mine asked if I would ride 200 miles with him in preparation for a tour across America that he was going to be doing. Well, he ended up having to back out, but I went ahead and completed the 200 mile ride from Clemson, SC to Brasstown Bald (highest point in Georgia) and then back through the Highlands, NC area. The only problem was that Brasstown Bald summit is not accessible by bike during the peak visiting times. You can either hike up to the top or take a shuttle. But they specifically disallow people from biking to the very top of the mountain. You can bike to the parking lot which is about 350 feet below the true summit, but you cannot bike to the top. I tried three years in a row at the end of each racing season, but I would always get chased down by the park workers. Well, guess what? In the middle of winter, the shuttles don’t run to the top, so you can bike up without any problems at all!
So I left our cabin early on Sunday morning, biked over to US 129 and climbed Neels Gap before turning onto GA-180 and climbing Jack’s Gap before turning at the top onto the 180-spur which takes you up three very steep miles to the highest point in Georgia. The ride started out kinda blah because it was really humid and warm when the sun was out, but cold whenever the sun went behind a cloud. So I kept on breaking out into a sweat and then getting cold. Plus, my legs were pretty cooked from the Southern Cross race the day before. But as soon as I made it to the Brasstown Bald parking lot and saw that the shuttles weren’t running, I knew that I might just have a shot at making it to the top – and I did! Strava categorizes the climb as an HC climb. Here is the elevation and gradient graph from Garmin Training Center:
And here is the Strava stats on the climbs (Neels Gap 2x and Brasstown Bald):
And here are two pictures from the summit of the climb:
After having the opportunity to finally make it to the top of Brasstown Bald, I immediately forgot about how bad I had been feeling and thoroughly enjoyed the return trip back to the cabin before driving home to Birmingham. Also, I stopped at Turner’s Corner store on the way back and got to talk to the owner, who is on the Six Gap Century committee. His gas station and convenience store is the first rest stop for the Six Gap Century, and there is a corner of the store that is dedicated to biking with all kinds of biking equipment. What a fun adventure in the beautiful North Georgia mountains.
Here are more pictures from the rides on Friday and Sunday: