Recent content by dougpnirv

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    Introduction & first impressions BMC Alpenchallenger

    Steve: My City One has the E-6100. I assume this refers to both the motor & controller. The motor is 250w & 60 Nm torque. When I was doing my research at the end of last year, I think I found the E-8000 to be 70 Nm torque, but I'm unable to confirm that today. As to their models, I can't...
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    Introduction & first impressions BMC Alpenchallenger

    Steve: Let me double check to see which model I've got, & I'll comment. As to the selection, I agree. It's dizzying & the BMC website is wonky. Their "find your bike" page has never worked for me. doug
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    Introduction & first impressions BMC Alpenchallenger

    steve: Maybe..... The City One is carbon fiber, and does not come with any rack mounts. The owner's manual is full of warnings about how not to abuse the CF. The only fittings are for the fenders, which mount with 3 mm screws. I've spoken to a shop that does CF repairs & they say it may be...
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    Anybody swap out their chainring for a smaller one for better climbing?

    This tool holds the slotted nut ...
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    Modify Handlebars on BMC Alpenchallenge AMP City One

    This is directed at percymon, regarding your reference to stems. You mention that the headlight mount is a standard GoPro type. Do you know what the dimensions of the cut-out on the faceplate are? I have researched stems on line but cannot find any reference to "GoPro type mounting" or any...
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    Introduction & first impressions BMC Alpenchallenger

    Thanks! This is my first e-bike & I'm really impressed with it. It's very natural, no sudden jerks of power or overrun after you stop pedaling. On eco setting I'm getting over 100 miles range on flat ground. Had it now just over 2 weeks & will roll over 200 miles tomorrow. The Shimano STEPS...
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    Replacing brake & shifter housings on AMP Alpenchallenge

    I've recently purchased a 2021 BMC AMP Alpenchallenge City One. Due to old age, I've replaced the stem & bars to allow a more upright riding position. However, this has also eliminated what little slack there was in the rear brake & shifter cable. I would like to install longer housings. The...
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    Introduction & first impressions BMC Alpenchallenger

    Pictures prove it happened. On this bike, that is all the junk I'm going to tack on. Well, maybe a rack.
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    Cable Lubrication

    I recently happened onto a thoughtful video where the guy suggested using a light, thin wax. He applied to the cables during installation. This was on a MTB which was ridden in wet conditions. His contentions were that the wax resisted water better than grease and that grease tended to...
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    Seatpost. Grease or not to grease?

    I'm in the anti-seize camp. Grease is great as long as you remove the seatpost from time to time & re-apply. Anti-seize sticks around forever & doesn't change. My rule of thumb on assembling anything is use anti-seize if it needs come apart someday (seatposts, pedals, etc.) and blue Permatex...
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    Cassette / sprocket lubrication?

    Ah, the eternal wax v lube debate. I participate in a couple of (non ebike) forums where this subject is enthusiastically discussed on occasion. The consensus that emerges is that wax, while a bit of a chore, is worth it IF you live in a dry climate. However, if you live in a rainy area such...
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    70 year old rider

    My ebike makes me feel like I'm only 50.
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    BMC Alpenchallenge AMP E-bikes

    Yes. I changed out the stock seat for a Brooks B-17, & carefully located to the crank to be the same as my old bike. Each change brings improvement so I'm on the right track. It's an entirely different bike from my old one so if I can get buy with only buying a stem I'll consider myself...
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    Modify Handlebars on BMC Alpenchallenge AMP City One

    I've used Ergons on Jones bars. I love Ergons. Just going thru this thread now as I have the same bike & am dealing with the same handlebar issues. Currently using Ahearne MAP bars, same as my old bike, and sorting thru the stem. I'm going to try as short a stem as they make to get the bars...
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    A question about connecting cables

    You mention that on the left control you have a third button that allows scrolling thru the screen. I just bought a 2021 AMP City One that only has the two buttons. To scroll thru the display I have to push the itty-bitty tiny button on the display unit, and it always defaults back to speed...
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