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location Vancouver, Canada
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visits member for 2 years
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Bicycle bicycle bicycle
I want to ride my bicycle bicycle bicycle
I want to ride my bicycle
I want to ride my bike
I want to ride my bicycle
I want to ride it where I like


Oct
15
comment how come some cyclists look like they are making a 45 - 60 degree angle with their bodies and I don't?
I would add you need good flexibility in your mid and lower back to properly and comfortably ride in the "flat-back" position.
Sep
29
comment Are there any high power bicycle generators?
@nickg - You didn't read my full argument. It is not that the lights output 800 lumen, it is that all dynamo lights on the market with an output 800 lumen have mirrors designed to shine above the horizon (for trail riding). I had wanted an 800 lumen light as well, but ended up using buying a 350 lumen light because it had the correct mirror. I also have trail lights (750 lumen) and there wasn't much difference in commuting application, because the 350 lumen focuses all the light on the road.
Sep
28
revised Are there any high power bicycle generators?
added 251 characters in body
Sep
28
answered Are there any high power bicycle generators?
Sep
20
comment How to choose between a race bike like a Madone and a classics bike like a Domane
@Angelo - If you are unsure what class of road bike will work for you, I am uncertain building a bike with custom geometry makes sense.
Sep
20
comment How to choose between a race bike like a Madone and a classics bike like a Domane
@ThaRiddla - I still have my carbon bike from my days as a cat 1/2 racer. Occasionally, I think of getting back into racing again, but life is so busy at the moment.
Sep
19
answered How to choose between a race bike like a Madone and a classics bike like a Domane
Sep
17
comment Is it possible to estimate road grade while riding?
No, the Edge units self-calibrates. I live in a mountainous area, near the ocean and whenever I drop down to the ocean or head to a known peak it is pretty close to the true elevation. The manual doesn't seem to specify how it calibrates, but the best discussion I have found on it is here.
Sep
14
awarded  Benefactor
Sep
13
awarded  Nice Question
Sep
13
awarded  Promoter
Sep
13
awarded  Scholar
Sep
13
accepted Relative efficiency of different commute bike setups
Sep
6
comment Relative efficiency of different commute bike setups
@Angelo - Thank you for the link, another James Spicer article can be found here as well. My goal is not trying to berate hub gearing (I love mine during the winter), but to better understand the appropriate application.
Sep
6
comment Relative efficiency of different commute bike setups
+1 to you sir. Thank you for the Kyle and Berto article this is exactly the type of information I was looking for. I did already have the Spicer article, but thank you for the reminder. I am finding google (or my googling ability) lousy for finding this type of info. Also your suggestion of using your "virtual elevation" method to get at drive train efficiency. Genius.
Sep
6
comment Relative efficiency of different commute bike setups
@Angelo - I use GPS bike computer to track my speed. That said, I also suspect a psychological component as I may be more discouraged on the less efficient bike (I still need to record power on the internal hub bike). I am not implying that I ride everywhere at 42kph, but the 32->42kph discrepancy was about where where I was topping on the different bikes while riding tempo on long flat sections. I can provide .tcx/.gpx files for confirmation, but fear of derailing the question, which asked if efficiency breakdown of different commute bike setups has been done before.
Sep
5
comment Why are there almost no bikes with a single chainring?
@jv42 - Ha ha! If only non-bike geeks actually knew this... Instead we get "What do I push to change a gear again?"
Sep
4
comment Is it legal to pass a car on the right when that car is turning?
+1 for a great answer. I will be saving this answer and referring others to it.
Sep
4
comment Relative efficiency of different commute bike setups
@OMGPonies - The main difference I noted was on the flats, where both have sufficient gearing and weight differences shouldn't be an issue. But for the record: the steel road bike weights 23 lb. and has a top gear inch of 109 (35-109), the internal hub bike weights ~28 lb. and has a top gear inch of (25-104). Both have drop bars and the same cockpit dimensions.
Sep
4
comment Do Shimano Nexus hubs lose efficiency as they get older?
You are correct in that I misread what you wrote about bearings, my bad. But you honestly should be change the chain by wear (which could be once very year or 2-4 times a year depending on your mileage and conditions). The 3-4 times I quoted was under heavy mileage and was cheaper than replacing a whole drive train, which would be required if I simply ran one chain that year. A stretched chain changes the pitch of the gears making them incompatible with a new chain.