Rider_X

1,443 reputation

114

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	location	Vancouver, Canada
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visits	member for	10 months
	seen	Apr 18 at 16:30
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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

	1,443 reputation	bio	website		visits	member for	10 months
114 badges		location	Vancouver, Canada		seen	Apr 18 at 16:30

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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.
Sep 4	revised	Relative efficiency of different commute bike setups added 9 characters in body
Sep 4	comment	Relative efficiency of different commute bike setups @Kibbee - It's not gearing. Both bikes have nearly identical gear ranges, in fact the internal hub (11 speed Alfine) has a slightly extended range compared to the my steel road bike (2 x 10 speed - Sram Rival). On the flat I am spinning at a similar cadence and feel I am in the appropriate gear for maximal power.
Sep 3	revised	Relative efficiency of different commute bike setups edited tags
Sep 3	revised	Do Shimano Nexus hubs lose efficiency as they get older? edited body
Sep 3	revised	Relative efficiency of different commute bike setups Added update
Sep 3	comment	Relative efficiency of different commute bike setups The key is to measure the response in terms of a relative difference, replication and a paired design. For example, adding fenders to a basic bike setup required x extra watts to over the non-fender version to maintain a speed of y. You repeat the test more than once and randomize the order in each replicate. I am also willing to assume these components act independently and in an additive fashion, meaning you don't have to test all possible combinations.
Sep 3	awarded	Student
Sep 3	asked	Relative efficiency of different commute bike setups
Sep 3	comment	Do Shimano Nexus hubs lose efficiency as they get older? Have you had your hub repacked with grease at any point in the last 5 years?
Sep 3	revised	Do Shimano Nexus hubs lose efficiency as they get older? added 77 characters in body
Sep 3	comment	Do Shimano Nexus hubs lose efficiency as they get older? I am sorry but 20k is not too much to expect from a properly maintained hub. Also you should change the chain by the amount of stretch, which may or may not fall on a yearly schedule. I typically change the chain on my race bike 3-4 times a year, or approximately 2000 km, depending on conditions (rain, dust , etc). Finally, I hate to be pedantic, but chains have bushings, not bearings.
Sep 3	answered	Do Shimano Nexus hubs lose efficiency as they get older?
Aug 31	comment	Why are there almost no bikes with a single chainring? @amcnabb - The question explicitly states that author believed a single chainring and derailleur is enough for most people. I many flat areas I would agree. I know many of reps within the cycling industry, often times marketing decisions/sell jobs are really as shallow as more is better.
Aug 31	answered	Why are there almost no bikes with a single chainring?
Aug 27	comment	What are the steepest, highest, most miserable road ascents in the world? @StephenTouset - Never did I ever say there no way to rank climbs (which for the record is somewhat subjective), but that asking for the steepest hardest climb in the world is an open ended pursuit. Jefromi seems to understand this point. I am not trying to be a killjoy, just trying keep the answers from becoming an awkward list (to quote amcnabb).
Aug 26	comment	What are the steepest, highest, most miserable road ascents in the world? Don't forget the climb on Highway 3 on the Hope to Princeton segment. That is 1500m over 50 km. On a fully loaded touring bike it kinda sucks. Then you can also drop off of Highway 3 not too far from Keremeos and ride up a dirt road to Apex Mountain (1500m over 20 km). Or you go ride up Mt. Baker for a similar profile. It is impossible to answer the question as there are too many options.