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  1. m@Robertson

    Fourth Best Helmet Half-Priced

    I've never liked handlebar mirrors. The view is a small fraction of what you can get from the helmet mirror. But the biggest issue for me is I have never liked moving my eyesight down and away from my path ahead, and losing that 1-2 seconds of awareness as to what is directly in front of you...
  2. m@Robertson

    Are You An All-Year-Round Cyclist?

    Year round here. Every day rain or shine. I work the bike into daily use, and try not to do multiple destinations in a single trip to ensure I have something to do today, tomorrow, the next day etc. A cargo bike gives me a multi-purpose platform to replace an auto. I do grocery pickups at a...
  3. m@Robertson

    Fourth Best Helmet Half-Priced

    The top pic in my post above shows my own Super Air R, which I bought specifically for that (irrelevant to this discussion) spherical MIPS improvement. The rear view mirror is attached. Riding it in the sunshine of Central California - which can be described best as blistering - the visor does...
  4. m@Robertson

    How do you use a new battery?

    Nope. Not true for Lithium-ion. May be true for some kind of battery chemistry that is not in use with ebikes (lead-acid, NiMh, NiCad... lots of rules differ depending on the battery type and I have no idea what they all are). A cooling off period IS a good idea when you come in from a ride...
  5. m@Robertson

    Using Flat Out in smaller tires questions

    I usually pull the tube out of the tire and use my lips hovering over the tube surface to feel where the air is rushing out. Since I can follow a trail of expelled goo to figure out within a narrow range where the problem occurred, that keeps me from having to sit on the side of the road and...
  6. m@Robertson

    Using Flat Out in smaller tires questions

    One of the things I try and make sure of is a rim has a depressed center area, which is what lets you unseat a tight tire bead on modern wheels, which tend to be really tight compared to bike wheels of say 10-20 years ago. On my Surly Big Fat Dummy, the factory My Other Brother Darryl rims (yes...
  7. m@Robertson

    Using Flat Out in smaller tires questions

    I talked to Flatout about this specifically and their response was that tire pressure did not affect its effectiveness. Whether that is 100% true, 80% true or some other number... I've personally never had any issues with tire pressure so I'd tend to believe its 80%+ Back in the day before...
  8. m@Robertson

    Using Flat Out in smaller tires questions

    I use Flatout on fat and skinny tires alike. I also use it as a sealant inside of tubes, and as a tubeless sealant. The only failure has been a 1" long slice/tear that destroyed the tube and damn near made the tire fail before I could get it home with a new tube inside. No issues with any...
  9. m@Robertson

    Bad News For UPP/Unit Pack Power apologists

    The hits keep on coming for UPP. Now in the USA the Consumer Product Safety Commission is reporting overheating and fires, and recommends an immediate stop-use...
  10. m@Robertson

    Sit Bone Width Relative to Optimal Saddle Selection

    I'm using the 16cm SQLab 610 Ergolux Active 2.1 on one bike, and two others have the 610 Infinergy 2.1, which is a slight upgrade and much bigger bucks. I definitely prefer the Infinergy covering but if I buy another one it will be the Ergolux simply based on cost. I used to use Ergon ST Core...
  11. m@Robertson

    How do you use a new battery?

    Trek is not using magical proprietary technology. 18650 and 21700 Li-NMC battery chemistry is universally the same in terms of what is good for it, and what is bad for pack longevity. When you have a brand spanking new battery, it is a good practice to charge it to 100% a few times to do what...
  12. m@Robertson

    Rode up on homeless person sleeping on bike trail.

    We have this all the time in my area as well.
  13. m@Robertson

    Advice on DIY Electric Front Wheel Hub for Adult Tricycle

    I took a bit of a look at this guy's Youtube channel and I have to say I enjoyed what I saw. He's now selling front-wheel-drive add-on kits and the things he is doing are exactly what I was when I got started on my early builds. Thats not to say I'm looking down on what he's doing. I'm seeing...
  14. m@Robertson

    Advice on DIY Electric Front Wheel Hub for Adult Tricycle

    Done right, there is no meaningful risk. The risks you describe as if they were inevitable are not. They come from someone who doesn't know what they are doing, does the job wrong and pays the price accordingly. Inexperience breeds misconceptions about the effectiveness of the concept, and...
  15. m@Robertson

    Portable power station requirements to charge 2 52 volt batteries at 4 amp

    Yeah if you try and trickle charge a power station, the battery is so large it'll take forever to just make a dent in the thing. Car charging is about the slowest way to bring a power station back up. It'll take hours to do it that way and you'll burn a bunch of $5/gallon gasoline doing it...
  16. m@Robertson

    Help choosing an air fork

    I'm a fan of anti-seize, and its something that the rest of the mechanical world seems to know well but shade-tree and even some paid bike mechanics are often completely unaware of. But its not a universal need. I certainly don't use it everywhere. What I do go on about all the time, though...
  17. m@Robertson

    Portable power station requirements to charge 2 52 volt batteries at 4 amp

    You calculate watts as volts x amps. So a 52v battery has peak voltage of 58.8v at a 100% state of charge. However, as a charger approaches its target voltage (58.8v) it will taper off its current output so it slowly just touches the peak voltage while putting power into the battery at a very...
  18. m@Robertson

    Portable power station requirements to charge 2 52 volt batteries at 4 amp

    If you are buying a power station, it almost certainly already has an inverter built in. The AC plugs you plug into a power station are going to an inverter inside the power station. Your power station specs will tell you how many amps you can put out. Two 4a chargers are going to want 4 amps...
  19. m@Robertson

    Help choosing an air fork

    Also that crown race you pictured is for a 1 1/8" tube. Wrong one. You want the 1.5" crown race. Cane Creek 40 races are 1-piece steel so they last forever. I've had cheap alloy crown races wear down to nothing and you find out the hard way when the bike stops working. You can find a $4...
  20. m@Robertson

    Help choosing an air fork

    Nope. Just buy a conversion bottom headset cup and it'll work. You're overthinking how complex the problem is :) Bear in mind those examples are complete headsets. You only need to buy the bottom piece. Cane Creek headsets can be purchased top and bottom independently as needed. With that...
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