Showing posts with label speed. Show all posts
Showing posts with label speed. Show all posts

Wednesday, April 25, 2012

Chasing the Nox full lap KOM

Last night I went out with the specific goal of giving my best go at Bob's ownership of the full Nox loop.

I had no expectations of coming in sub 50, much less challenging his time of 49 minutes dead -- but I figured I could put in something in the low 50s.

I started off with a lap of the Cold Spot loop backwards, to warm up and to check out the downed tree that Bob had warned me about.  Returned to the parking lot, talked to some guys, then headed out for my loop.  The downed tree wasn't too bad, had to get off the bike, hop the tree, and get back on, but I don't think I lost too much time.  On the northern Hammer loop, my phone starts going off.  There was an upgrade happening at work, and the notifications of stuff being unavailable started rolling in.  No big deal except I have my phone set up to keep notifying me until I actually look at the stuff.  Super.  So, I had to pull off my full-fingered glove, dig out the phone, unlock it, view the messages, lock the phone, and stick it back in my jersey.  This happened probably four or five times on the Hammer loop, all while I'm trying to maintain a race pace.  Looking at the results, it did affect my time -- my best there is 7:15, and this lap went down in 7:42.

I kept a steady pace on the connector trail, then got to the south loop.  Was going pretty well until I cut it a little too close to a tree, caught my jersey on the remnants of a branch, and had it quite literally ripped off my back.



 
Click the photo for more pics of my wrecked jersey.
This wouldn't have been much of a problem (except for it being my favorite jersey and favorite base layer) except two of my rear pockets ceased to exist, causing my phone, keys, and multi-tool to fly all over the place.  Had to stop, pick the chunk of jersey off the tree (now hanging in my cubicle) and pick up my stuff.  Then, I had to figure out where to put all this stuff, since I now had significantly less room to put it.  So, I tried what seemed like the best idea... tucked the stuff into the legs of my knickers.  I spent a bit more time looking for my second set of keys, but couldn't remember if I left them behind at the car or not, so I gave up the search for them so I could keep riding.  (more on those keys later)

Well, the legs of my knickers wasn't such a good spot.  As I pedalled, the stuff would migrate down, eventually heading for the spot behind my knee.  I managed to get the phone stuffed into my last remaining pocket once I realized it was still usable, but fought the multi-tool and keys for the remainder of the south loop, all while trying to maintain a "race pace".

Got to the end of the south loop, and had to take a moment to relocate my keys and multi-tool to my already overstuffed seat bag (yes, the one that looks like a racoon) because I wanted a good run on the Eastern Woods northbound trail.  See, a couple days ago I made a run at that trail with two phones recording.  (I've had some issues with great rides getting "lost" due to the GPS getting mental, so now run a backup) At the end of the day, one recorded a time of 5:32, and the other recorded a time of 5:56.  So I was either well faster than Bob on that segment, or two seconds behind.  That's a pretty big gap, so I had to go back and do it again.  I figured if I could do at least a 5:4x time, then my 5:32 was legit. (that phone typically is far more accurate, too)  So, I wanted to have a good run on there.

Well, it was a little wet, but most of the trails were solid.  A handful of spots which were a little slick, but nothing too bad.  My time was slower, but not massively slower, so when I came in with a 6:04 time, I realized my 5:32 was bullshit. Too bad, but beating Bob by 20 seconds anywhere smelled far too much like bullshit, no matter how much I wanted to believe it.  On the upside, his 5:54 is only 2 seconds faster than I've gone, so I can get that.  Will it happen before he's in the 5:40s?  we'll see.

I finished up with the Haycock Run uphill, on which, only an hour or two before -- Bob set the new KOM... and came in only a little bit behind at 2:15 to his 2:09.  Weird that I run that section faster uphill than down.  I think a sub 2 is possible.

So, I was a little disappointed with a 57 minute time, but at least I came in sub 1 hour, and considering my two stops and having to check my phone, it's not too bad.  I figure it would have been a solid 54 minute run, maaaaybe 53 minutes.  Dry trails and luck, I might be able to drop it to 52 minutes.  So Bob's time is pretty much unchallenged, thanks in no small part to his phenomenal bike handling.  The one time I rode with him, I went from right on his wheel to 50-60 feet back in the span of a couple tight downhill S-turns.  That shit just adds up.

All in all, though, it was a fantastic ride.  It's not often I just focus on going hard for an entire MTB ride like that, and the challenge is so much fun.  Thanks to Bob for giving me something to shoot for!  I will get to a 49 minute lap, but I'm pretty sure Bob will be sub 45 by that point. :D



Oh, and I mentioned the second set of keys.  Got back to the car, gave a good search, and discovered that set of keys was not in the car.  So, that meant I did have them, and they were still laying trailside by that tree.  So, I loaded up the bike, and headed for South Park Rd, where you can park on the side of the road and access the trails.  As you can see here, the trail gets really close to South Park Rd, climbs up for a while, then drops back down, getting very close to the trail you just rode.  I took advantage of this, rode cross-country between the two chunks of trail, and got back to the scene of the crime.  Using the light on my phone (it's past sundown and I'm losing light fast) I managed to find my keys about six feet down the trail from the tree.

Monday, August 10, 2009

My Review of Flashpoint High-Grade Alloy Bicycle Bracket for 31.8mm Handlebars, Allows the Mounting of Ballheads

Adorama

Flashpoint High-Grade Alloy Bicycle Bracket for 31.8mm Handlebars, Allows the Mounting of Ballheads

Nice design but transfers too much shake

cmh Doylestown, PA 8/10/2009

3 5

Pros: Lightweight

Best Uses: Casual riding

Describe Yourself: Photo Enthusiast

First and foremost, Adorama says you need a ball head to use this. You do NOT need a ball head. It can help and make the mount more flexible, but it is NOT necessary, as the mount comes with both a 1/4" and 3/8" thread. If you're just going to mount the camera pointed forward, you can save the money and skip the ball head.

I came across this camera mount on Adorama, and looked at it for a while before deciding to buy it. My plan was to use it to mount my Canon SD800 (small point-and-shoot) and shoot video. When I got it, I was impressed with the build quality, it does not look cheap at all, and the hardware is quality. Installation is very easy.

The problem, however, is the same with a ball head or without. At moderate speeds, the camera works very well, with only moderate shake, as can be seen in the following short video: http://www.youtube.com/watch?v=2wHd3yhPFJU

However, on the mountain bike (with front suspension) or on the road bike (carbon fiber frame and fork) once you start reaching any type of "interesting" speeds, the vibration is such that my camera winds up shutting itself off, and even if the camera was recording at the time, the file that was recording is lost.

For example, I rode a course at casual speeds, and got 10 minutes of good quality footage. During a race on the same trails, however, I got nothing, because the higher speed and sharper bumps caused the camera to shut off. On the road bike, I could cruise around town, but when I headed for a high-speed downhill, it would shut off soon after I started.

It is possible that other cameras would have better results, if they are more resistant to vibration. Understand - I'm not talking about the shake reduction feature in the camera (the SD800 has this) - I'm talking about being bolted to your handlebars and shaken pretty hard.

For cruising around the beach, a casual bike trip, or really smooth roads, it'll probably work pretty well, but for anything more interesting, you'll have to look elsewhere.

For my use, though, I'm saving up for a proper sports camera.

Mounted on mountain bike.

thumbnail

: Picture of Product

Short test video using the mount

: Mountain, Handlebar, Using Product, Road, Doylestown, MTB, Flashpoint, Mount, Bike

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Monday, July 28, 2008

Oh, the pain...

Today I did a ride with Dave. Dave lives two houses away, and I always see him out on the bike. We've talked about riding a bunch of times, so I decided it was time to finally stop talking and start riding. He was open for a ride tonight, so we met up when he got home, and went for a ride.

Dave's a strong rider... really strong, so I was forced to work pretty hard. Not to keep up, he's very considerate and doesn't drop me, but it really did force me to work a BUNCH harder than I would have otherwise, and that's NOT a bad thing. We did 38 miles in the time it would have normally taken me to do 30-32, and included some fairly significant hills. Dave's 45 lbs lighter than me, and about the same height, so when we hit those hills, without even trying, he just kinda faded away into the distance up the hill as I struggled along in my lowest gear. Doesn't help that I'm coming back off a two week layoff, but it's gonna be a long time before I challenge Dave up a hill.

However, I got a measure of revenge going down Tohickon Hill road, the same hill I use for my top speed runs. I was sloppy through the S turns, and didn't get on the gas until I was fully out of the last corner, but still managed 52mph with cramping calves. (and a squirrel in the road) Dave, on the other hand, cut across the opposite lane and started pedaling earlier and still only did 48mph. HA! Gravity is my friend, if only while going downhill...

Heading back home, we were heading up Carversville Road, which is a shallow climb all the way, but no, I suggested take a side trip up Stover's Mill Road, which hits you with a short climb of approximately 15% grade. So, we're going up the hill, past a guy playing catch with his son, and a cute little girl standing by the side of the road, and right at the top, where it gets just a little steeper before it levels off, I stood to push through the end, and both of my quads cramped up - SOLID. I sorta fell down onto my saddle, and yelled out (it kinda hurt) but thankfully caught my tongue when I remembered the little girl -- didn't want her to hear what I was about to say!

I tried to ride through it, but it just wasn't working... I had to pull off to the side. Dave stood there holding my bike while sat in a ditch on the side of the road, pinched my upper lip (accupressure thing I've heard of to relieve muscle cramps) and tried to move my legs. Eventually, after a minute or two, I was able to remount the bike and start riding again.

Despite suffering like a dog, it was an AWESOME ride. I'm looking forward to riding with Dave again, as there's no way to get better than with riding with faster folks. He told me about a hill interval ride he does that he calls the "Six Sisters", and said nobody's done it with him twice. I need work on my hills, so maybe I'll be the first to do it twice? It's about an hour long, right in our backyard, and it sounds PAINFUL.

Oh, an amusing side note. While comparing the output from our bike computers at the end of the ride, our climbing was almost identical - 1716 feet to 1760 feet, but we did notice a significant discrepancy between our caloric outputs. While I, at 210lbs, burned 3200 calories, Dave burned only 1700! Damn skinny guys. :)

More speed...

As I had mentioned in a previous post, I've taken to making top speed runs down Tohickon Hill road, a local road which is ideally suited for the task. It has a couple of S turns at the top, but then straightens out and holds a steady 8% grade. Last time I tried, I spun up to 150rpm, and hit about 52mph. Since then, I've replaced my top two cogs, a 12 and 13, with an 11 and 12 taken from a mountain bike cassette. That raises my top gear from 116" to 126" (gear inches; the virtual diameter of a wheel that turns once for every pedal revolution) which means I go 33" farther with each turn of the cranks.

Having been off the bike for about two weeks, my Saturday and Sunday morning rides were not great, but on Sunday morning, I did take a run down Tohickon. Coming through the S turns, on the second to last corner, I saw a big dump truck coming up the hill, rounding the last corner. Since the truck was big, his tire was over the centerline, so I had to get on the brakes pretty hard and move to the right. This obviously lost me a bunch of speed, but I hadn't planned on making a full top speed run anyway.

I came out of the last corner going maybe 30mph, brought the speed up, got a good spin, but nothing crazy... saw about 47 or 48mph when I glanced down, figured that was good enough, and backed off.

However... when I got home, I was downloading the ride from the GPS, and noticed that it marked my top speed as 51.8mph -- the same reading the GPS had given for my last top speed run! So, without even trying, I've managed to tie my previous best mark.

Man, I can't wait to try that hill again while I'm fresh. 55mph? 56? more? We'll just have to see. I also noticed that since I wasn't pedalling as fast, the bike was far more stable, so I should be able to go far faster and still feel safe.

I wonder if I'll be able to beat 60mph at some point...

Tuesday, July 8, 2008

Speed!!

Today I had the day off, so I went out for a ride. I started out later than normal, and by the time I was on the road, the temperature and humidity had already come up, and thanks to a workout yesterday, my legs were feeling heavy. So, I figured it was going to be a simple out and back ride, but it turned into my longest single ride of the year, at 43 miles. (commuting is good for two 33 mile rides, so I've had longer days)

I got out and hit the old faithful roads of upper bucks to the northeast of home, and made a point to hit several good, serious climbs. I made it all the way up to the area we call the "Lost World" (where we used to go driving with the Miata to get lost) and found a new tough hill -- Cafferty Rd just past the Frankenfield covered bridge. According to my GPS, several hundred feet of this climb were at or beyond 20% grade. That is a serious climb, and it doesn't flatten out after that, it settles in to around 7-10% grade all the way until the top. Cafferty splits off of Hollow Horn Road, which stays flat, and as you climb Cafferty, you can see Hollow Horn off to your right, dropping far, far below. It's pretty cool.

On the flipside of the big elevation changes, I set a new personal speed mark descending Tohikon Hill Road. Friday I had tried, and due to damp roads and a heathly amount of fear, I could only manage 49.7mph. Today, however, the roads were dry and clear, and I went at it with gusto, spinning all the way up to 150rpm and hitting a speed of 52mph. I've spun faster, but at those speeds, the front end of the bike starts to get a little shaky, which doesn't inspire confidence.

Couldn't help but think... with the 12-25 cassette... if I swap out the 12t cog for an 11t cog... the same 150rpm would be good for just shy of 57mph. ;-)