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Thread: My Morning Commute

  1. #6061
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    Quote Originally Posted by bentbike33 View Post
    Would love to see one of these on the 14th St. bridge when the wind is roaring down the river.
    Quote Originally Posted by AFHokie View Post
    More likely to see it floating above the bridge in those conditions

    Sent from my SAMSUNG-SM-G930AZ using Tapatalk
    Did y'all catch this from a couple of weeks ago?


  2. #6062
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    Quote Originally Posted by Birru View Post
    Speaking of rain, does anyone have any good recommendations for waterproof gear that won't break the bank? I've got stuff that's wonderful in bitter freezing weather, but my gloves and shoe covers just soak through in cold, heavy rain and then I'm miserable with numb extremities.
    I use these boot rain covers designed for motorcyclists. I don't clip in on my commuter. The bottoms of theses are open so you can walk and ride in them without slipping or damaging them. They fit over regular shoes and keep them dry even in the heaviest rain. They are pretty bulky, but that's a trade off I can accept to keep my feet dry. They work best with shoes that have some kind of rubber bottom to keep the water out from below.

    https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

  3. #6063
    TwoWheelsDC's Avatar
    TwoWheelsDC is offline I really need to log off the internet and go for a ride.
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    Quote Originally Posted by TwoWheelsDC View Post
    Yesterday, I rode my Cervelo road bike, but when reviewing the ride I noticed the power numbers seemed a bit low compared to my ride on Monday (for the same segment) on my gravel bike. I figured it could be due to wind or fatigue or whatever, but today's ride on my gravel bike seemed to confirm that either my Cervelo is waaaaaaaaay more efficient than my gravel bike, or there's a calibration issue with one of my power meters (Stages on the gravel bike, Garmin Vector on the Cervelo, both left-side only. I always calibrate at the start of my rides). My suspicion is that the Vector pedal needs to be re-torqued, so I'll try that first. If not, I'll throw the Vectors on my gravel bike and see how the numbers line up with two power meters on the same bike.

    Also, kinda crazy that the time/pace numbers here are for two drastically different bikes. 1st (Monday) and 3rd (today) are the gravel bike. Aluminum frame, 700x35 tubeless tires, ~21lbs. Middle (Wednesday) is my Cervelo. Carbon frame, 700x23 tube clinchers, ~19lbs.

    Confirmed my suspicion this morning. Re-torqued my Vector pedal this weekend and got a much more consistent number on this segment today. 255W @ 12.8mph. Still lower power (but faster) compared to the higher numbers from last week, but I think my Cervelo is maybe 4lbs lighter than my gravel bike now, and with much faster wheels and tires, so I think that probably explains the gap.

  4. #6064
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    "Hey! Hey you! You're running a flat on your rear wheel! Just letting you know!"

    I have yet to experience my first flat tire as a bike commuter. I looked down at my rear wheel several times but can't really tell if it's flat. When I'm stopped, the wheel is not sitting on the rim. I tried squeezing both tires with my fingers and they feel the same.

    Before my ride I pumped both tires to 70 psi, within the 55-90 range printed on the tires.

    The suggestion I might be riding a flat tire messed with my head. I rode through the Potomac Yards parking lot and sidewalk along Rt. 1 instead of my usual Potomac Ave route - just drained of confidence to take on the headwind while riding with car traffic. Rode down the bit of gravel/dirt from E. Glebe to the Target parking lot - didn't feel any different than riding the C&O Gap Trail.
    Last edited by GovernorSilver; 04-05-2017 at 09:09 AM.

  5. #6065
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    Quote Originally Posted by GovernorSilver View Post
    "Hey! Hey you! You're running a flat on your rear wheel! Just letting you know!"

    I have yet to experience my first flat tire as a bike commuter. I looked down at my rear wheel several times but can't really tell if it's flat. When I'm stopped, the wheel is not sitting on the rim. I tried squeezing both tires with my fingers and they feel the same.

    Before my ride I pumped both tires to 70 psi, within the 55-90 range printed on the tires.

    The suggestion I might be riding a flat tire messed with my head. I rode through the Potomac Yards parking lot and sidewalk along Rt. 1 instead of my usual Potomac Ave route - just drained of confidence to take on the headwind while riding with car traffic.
    IMO if you've been riding the same bike for a while you'll know if you have a flat. A flat in the rear feels sort of like your rear tire is in mud, robbed of a little power and tracking a little squirrely. The numbers you mentioned also need some context. Are these narrow 23c tires on a heavy bike? 70psi sounds low but not flat so there may be a lot of visible sidewall deflection, but that depends on bike/rider/load weight. On 32c tires 70psi sounds like plenty for most people.

    You might as well inspect the tire for any obvious signs of a puncture or tear. Since you made it to your destination, also check the tire again at the end of the day for any changes in pressure. Even better: buy a tire gauge and measure.
    Last edited by Birru; 04-05-2017 at 09:22 PM.

  6. #6066
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    Ah, Spring in DC. Gotta love it.

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  7. #6067
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    Quote Originally Posted by Birru View Post
    IMO if you've been riding the same bike for a while you'll know if you have a flat. A flat in the rear feels sort of like your rear tire is in mud, robbed of a little power and tracking a little squirrely.
    This is a good explanation of what it feels like to have a flat, or lower-than desired tire pressure. You might just have low pressure causing your sidewall to bulge more than expected, or the person really just didn't know what they were talking about. I know I've asked people on rides why they ran such low pressure on certain bikes, and it ended up being the right pressure for their bike/comfort/etc. But definitely check on your way home. When I have a sudden fear of flats I stop my bike, and look down while still putting weight on the bike. If the sidewalls are not bulging more than normal, I figure I'm fine. If one is, I know I have a problem...

  8. #6068
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    Quote Originally Posted by GovernorSilver View Post
    "Hey! Hey you! You're running a flat on your rear wheel! Just letting you know!"
    ...

    The suggestion I might be riding a flat tire messed with my head...
    This is a common tactic that my buddies and I use at the start line of races

    Other start line head games:
    1. "Is this race 2 laps or 3?"
    2. "Do we turn left at that tree, or right?"
    3. Reach down at their tire, put finger on valve, and make the hiss sound.


    They've become so common to say, it's almost akin to "Break a leg."

    EDIT - if anyone gets upset, it's always done in jest amongst other friends, (and generally not with newbies, people we don't know, and/or with menace). I'm not evil...

    Last edited by drevil; 04-05-2017 at 09:50 AM.

  9. #6069
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    Quote Originally Posted by Birru View Post
    IMO if you've been riding the same bike for a while you'll know if you have a flat. A flat in the rear feels sort of like your rear tire is in mud, robbed of a little power and tracking a little squirrely. The numbers you mentioned also need some context. Are these narrow 23c tires on a heavy bike? 70psi sounds low but not flat so there may be a lot of visible sidewall deflection, but that depends on bike/rider/load weight. On 32c tires 70psi sounds like plenty for most people.

    You might as well inspect the tire for any obvious signs of a puncture or tear. Since you made it to your destination, also check the tire again at the end of the day for any changes in pressure. Even better: buy up a tire gauge and measure.
    I've been riding this bike (Jamis Renegade) intermittently for about a year. Rode it on the C&O last fall, then barely rode it until this past March. Jamis calls it an adventure road bike - a bit heavier than a road racer but lighter than a touring bike.

    I still have the stock tires on it - 35c Clement X'plors. I'll check for signs of puncture/tear this evening and pump them a bit more, assuming the pump here at work fits Presta valves. Thanks!

  10. #6070
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    TwoWheelsDC is offline I really need to log off the internet and go for a ride.
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    I can't imagine riding for several miles and then looking at my bike and saying "hey, when did I get a flat tire?" Even if your tire is low (assuming it's not already leaking), the only real concern is susceptibility to pinch flats if you go over a curb or something. Tire pressure has a pretty minimal effect on rolling resistance.

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