rec.sport.unicycling · Public discussion

Speedy Schlumpf on the test track

Started by gkmac · · Last activity · 6 posts · 191 views

Thread navigation

Jump through the discussion

Go to the original post, the replies on this page, or the latest preserved contribution.

Thread details

What we know about this thread

Original section
rec.sport.unicycling
Published
30 August 2006
Last activity
4 September 2006
Original author
gkmac
Posts
6
Discussion status
Public discussion
Total views
191
Views / 30 days
0

The navigation and discussion metadata provide context. Posts remain in their original chronological order.

Showing posts 1–6 of 6
Posts remain in their original chronological order.

Text size
  1. After spending a month trying to get to grips of how my Schlumpf 29er
    would react on a narrow path somewhere in Croydon, taking it out for a
    proper ride seems long overdue.

    The car park at Boxhill & Westhumble train station is free... and full.
    I am resorted to set up in a row of parked cars about twenty yards from
    the end of the road leading onto the busy A24. The section I will be
    riding on is nicknamed "The Mickleham bends of death", from boy-racer
    compatible straight dual carriageway just outside of Dorking to a
    speed-camera enforced bendy section by Leatherhead.

    On each side of the road is a well separated walk/cycle path, I choose
    the left side of the road where it lasts the longest. A fine and safe
    method of test riding, with the drawback of the biggest audience of
    passing cars.

    After locking the car I pick up the uni in preparation to push it along
    and as I do, briefly lift up my right foot and kick the golden button.
    As I turn left the cycle path splits in two, the left side signed
    "Cyclists dismount" and descending into a subway. I push the big black
    guni into position, hold on with all my might on the metal fence while
    levering myself up keeping the pedals in position. Then I push away,
    but lean forwards too far and step forwards off the uni.

    The second pushoff attempt is successful at precisely 11:30. Flapping
    my arms round like poi and wobbling so slightly, I gradually pick up
    speed and begin to stablise. Holding the seat handle I go straight, but
    the wheel feels out of control as it seems to dart forwards and
    backwards at first. Within thirty seconds things feel in control, but
    the adrenalin is already starting to pump.

    By now I've already well passed beside the other ramp accessing the
    subway, the track is not exactly that super-smooth but is perfectly
    bearable. I try and fight my instincts to slow down, slowing down works
    and is needed for a tractor muni, but I'm not riding a muni. The cushy
    Big Apple tyre means I clear the imperfections no problem, but more
    effort for fighting those careful instincts is needed when a tiny
    diversion into a muddy track is seen, evidence of 4x4s driving from the
    mud across the path to the road spreading a thin even layer of mud all
    over the path. Again, no problem.

    The path and accompanying road very subtly bend to the left a little
    and the grass separation is populated by a small line of trees, here is
    where I accelerate and keep on. Surprisingly the traffic doesn't appear
    to be taking any notice of me, the sight of cyclists being perfectly
    normal on this entire stretch, or perhaps 70mph is a bit too quick for
    wheel quantity differentiation. A subtle bend to the right and the tree
    line stops. The slight weariness of the tarmac is now gone, turning
    into something very super smooth, unlike the slight movement of the
    gears causing the "loose crank" feeling. I glance at the tiniest
    details of the tarmac rushing past below me and realise that, for the
    very first time, it feels like I'm riding a bicycle.

    About a mile down the road is a bend to the right, still very subtle
    for me for not for the speeding traffic who will have their attention
    diverted from me to the LED road signs lighting up, warning them of the
    50mph speed restriction and speed cameras ahead. On this bend a very
    thick tree covering separates the track from the road. I was looking
    forward to this privacy, but since no reaction has come from the
    traffic and I've not encountered anyone else on this path yet, I feel
    okay. The speed now feels pretty fast, but more importantly constant as
    by now the crank play doesn't feel bothersome to me.

    The tree covering disappears and as I get the chance to glance the
    traffic again a car horn sounds, seemingly to come from a red Fiesta.
    Was he honking because of me, or the speed camera? He's gone in ten
    seconds. My strong sense of counting seconds means that I take a rough
    guess of doing one and a half pedal revs every seconds, that's 90rpm.
    Not really surprising that since lift-off I haven't let go of the
    saddle handle at all!

    On the next subtle bend to the left I see a racing cyclist in the
    distance crossing over the busy carriageway. I don't see him arrive on
    the path since the tree cover on the left combined with the left bend
    is blocking the sight. As I pass an access road going over a white
    railing bridge I see him ahead of me, he's stopped and seems to be
    checking something to do with his bicycle while seated on it. I ponder
    on the fact that I could look utterly ridiculous to him, but then again
    -he- is the one who is somehow squeezed into a blue skin-tight lycra
    outfit. At least my ordinary looking polyester t-shirt and baggy MTB
    shorts won't get everyone gawping if I ever stop and wander into a
    shop.

    There are some puddles ahead. Again, muni instincts are hanging on and
    I have the tiniest thought of plotting a path around the puddles, even
    though there's no need as there'll be nothing but smooth tarmac
    underneath. The first puddle is on the right, and I stick to the left
    of the path since I get the feeling I'm about to see that cyclist again
    very shortly. The next puddle is on the left, I meander slightly to the
    middle to avoid it, cursing myself that I didn't really need to do
    that.

    Again I return to the left and then a middle aged voice enters my right
    ear; "That's hard work". I just say thanks to the man in blue as I
    notice that he makes me feel ten foot tall, me having a much higher
    saddle and keeping my back straight. He still leans over his handlebars
    as he rides his thin silver machine off in front, to my speedy self he
    isn't going that fast. I try my best not to feel too nauseus as several
    seldom-talked-about build features are obvious below the shiny
    revealing blue.

    Speeding around the edge of the middle of a puddle wide enough to cover
    the whole track, I soon forget about the bends as a very subtle incline
    starts to bring a very slight feeling of burning into my muscles. I do
    slow slightly, but still keep up at a very high speed and I don't in
    the slightest way feel tired. After the gradient is the home straight,
    in the far distance a roundabout with a Texaco garage perched on the
    opposite corner, my turnaround point. I slow down slightly and get a
    little frightened when my wheel rolls over a crinkly set of small
    shingly stones. The uni shoots through without a hitch, but I still
    fling my arms out of being slightly scared.

    Eventally the roundabout is just fifty yards ahead, and I'm already
    forcing the pedals at the backstroke to slow myself down in plenty of
    time. After 2.5 UPD free miles, I stop and glance at my watch. It's
    just before 11:45.

    *end of part one*

    --
    gkmac
    ------------------------------------------------------------------------
    gkmac's Profile: http://www.unicyclist.com/profile/4577
    View this thread: http://www.unicyclist.com/thread/52690

  2. PART TWO

    Around the corner is a pole that once held a sign. I see if that's a
    good remounting spot, but for once I'm not wearing my 661s and my leg
    gets prickled by plants. So back around I use the pole holding the
    roundabout sign on my left, even though I prefer to hold on things on
    the right side. Just like before, the initial push-off results in me
    stepping forwards off, needing a second attempt to get going. Less than
    a minute before setting off my tyre speeds through the loose stones and
    before I know it the pedalling gets easier as I sail down the decline.
    I try to see if I can spin the pedals faster, but my fear is stopping
    my feet from doing so.

    Now returning to the first of the puddles, the big wide one. This time
    I speed through the middle adding the occasional drops of water to my
    legs. I avoid the second one but plough straight through the third one,
    I don't know why that felt so good. Now the tree shield returns and I
    get a little distracted when a wasp dances around the finger of my
    glove. It flies away and I try to rebuild speed, but I UPD into a big
    running stride.

    Oh no! I need to freemount. In high gear. At the moment changing gears
    on the move is out of the question since my shoes are too small and the
    current pedal pins are far too vicious to be able to adjust footing;
    when my foot lands in a certain position, my foot stays in that certain
    position. When I practised high-gear freemounting last night I was able
    to do it in about one in three attempts. The atmosphere of having to
    get back, along with being out in the open with a big audience will
    mean the chances of successfully doing it will be cut in half at
    least.

    The first two attempts my foot lands in the wrong position. The third
    attempt, my foot does land correctly but is unable to get it moving
    thanks to the V-brake pads being misaligned during the UPD. I pull and
    release the brake to re-centre them and have another go. And another.
    The sixth attempt my foot lands in the correct position -and- I'm able
    to push it forwards, but my flinging arms make it wobble left. The next
    stroke I try to re-wobble it to the right, but too far. Wobble left.
    Wobble right. Then left. No speed. Then far too far right and my back
    foot leaves the pedal, down I come. By now the tree cover was starting
    to disappear, so I walk back to relative privacy and have another go.
    And another go.

    Getting frustrated I almost reach for the silver button, but one last
    try. My foot lands in the correct position, the pedals begin to move
    and I concentratingly haul on that saddle handle. I'm going slow. Then
    I'm going straight. At long last after nine remount attempts I'm able
    to enter the comfort zone and gain speed towards the occasional tree
    line.

    I see a sign on the other side of the road, saying there is a mile to
    the car park. Getting curious I check my watch and notice that the
    second-hand is about to stutter it's way past zero, remembering there
    is indeed a much more accurate way of guessing rpms. When the
    second-hand passes zero I start to count everytime my left foot stamps
    down, glancing every now and then back at my watch. The second-hand
    completes one turn, and my legs about eighty turns. For the first time,
    my legs are burning slightly enough to signal that tiredness may be
    coming soon.

    The super smoothness of the path ends and I'm over the small spread mud
    patch again. I catch sight of a wall on my right so again I gradually
    slow myself down and a few seconds later I step off. Slight mistake as
    it's not separating the subway access ramp, that's a few moments later.
    Since I'm so close to home I don't bother remounting and instead I push
    past the wall, past the subway access ramps, round the right turn and
    I'm back at the car. I remove my gloves and helmet and notice that
    relaxing my hands seems to have become impossible, they are shaking
    slightly as I try to make sense of other hands pointing to numbers on
    my watch. The time is 12:05, so including about two minutes of eight
    failed remounts, a wild guess of a 5 mile return journey in 35 minutes,
    about 10mph?

    Fortunately my hands are fully relaxed by the time I get home for my
    fingers to tap-dance around the keys in two applications. One to make
    this writeup, and other in a quick spreadsheet I made up to calculate
    speed mph from pedal rpms. Giving a virtual 45" wheel, if I stayed at
    80rpm all the way I would have done 10.5mph. And if I did really peak
    at 90rpm, my peak speed would be 12mph.

    So I'll call it 11mph I think. Someday I'll buy a GPS and do the speed
    and distance measuring thing -properly-.

    --
    gkmac

    "It's a marvellous thing to see, someone in full flight on the
    unicycle." - Stuart Maconie, Radio 2
    "Oh no! Both my toes have gone numb!" - Joe Hodges
    "You also met me gk! I was the one eating the sandwich!" - Adam Gayne
    "Act your tyre pressure, not your age." - rob.northcott
    ------------------------------------------------------------------------
    gkmac's Profile: http://www.unicyclist.com/profile/4577
    View this thread: http://www.unicyclist.com/thread/52690

  3. If you can't be bothered with gps, http://www.gmap-pedometer.com/ is
    great for this kind of measuring of rides.

    You have to click "more options" to get UK places.

    Assuming you turned round at the Leatherhead bypass, I make it 4.95
    miles, so pretty much 5.

    Also, if you need gear ratio calculations for the Schlumpf,
    http://users.tkk.fi/~jbiskups/BIKE/BikeRatio3.html does the job too. I
    think the wheel circumference for a big apple is around 2300, and put
    front gears as 17 rear gear as 17,11. You need to press enter after
    typing in each figure for it to update.

    Joe

    --
    joemarshall

    my pics http://gallery.unicyclist.com/albuq44
    ------------------------------------------------------------------------
    joemarshall's Profile: http://www.unicyclist.com/profile/1545
    View this thread: http://www.unicyclist.com/thread/52690

  4. Fantastic write up. I thoroughly enjoyed the story. The lycra comments
    were particularly illuminating.

    Your machine sounds amazing.

    Cathy

    --
    cathwood

    Say no to unicycle genre discrimination! - MrBoogiejuice

    http://www.chuckingandtwirling.co.uk
    ------------------------------------------------------------------------
    cathwood's Profile: http://www.unicyclist.com/profile/9425
    View this thread: http://www.unicyclist.com/thread/52690

  5. Cool - looks like you're getting your confidence back. Now to really
    give it some welly and see what it can do... don't fall off though
    :eek:

    Rob (a lycra-wearing cyclist :o)

    --
    rob.northcott

    'Dartmoor Muni Weekend'
    (http://www.unicyclist.com/forums/showthread.php?t=46116) - Last
    weekend in May 2006
    Same again next year anyone? It'll be dry, I promise.
    ------------------------------------------------------------------------
    rob.northcott's Profile: http://www.unicyclist.com/profile/7436
    View this thread: http://www.unicyclist.com/thread/52690

  6. A little epilogue to this tale.

    I was chatting to one of the handful of people at work who knows that I
    ride a unicycle. I said to him that my legs were still acheing after a
    rather tiring muni ride in North Wales.

    He then said to me "Were you at Mickleham last week?".

    Turned out that he and his girlfriend were in one of the hundreds of
    cars that passed me; he has the honour of being the first non-uni
    friend I have to see me ride. He said that at the time he thought it
    was me but wasn't sure. Apparently my silver helmet is a perfect
    disguise.

    Another thing: if you enjoyed this tale, I've LaTeX'd all my other
    tales into a neat PDF package which you can get via the link below. If
    you've already seen it, it's since been updated with this tale, along
    with a few speling corections here and there.

    http://www.gkmac.co.uk/stuff/rides.pdf

    --
    gkmac

    "It's a marvellous thing to see, someone in full flight on the
    unicycle." - Stuart Maconie, Radio 2
    "Oh no! Both my toes have gone numb!" - Joe Hodges
    "You also met me gk! I was the one eating the sandwich!" - Adam Gayne
    "Act your tyre pressure, not your age." - rob.northcott
    ------------------------------------------------------------------------
    gkmac's Profile: http://www.unicyclist.com/profile/4577
    View this thread: http://www.unicyclist.com/thread/52690

Active in the last 60 minutes

Active in this thread

0 users · 0 guests ·0 bots ·0 total

No signed-in users are active right now.

No known search crawlers active right now.