382 reputation
29
bio website
location
age 41
visits member for 3 years, 1 month
seen Dec 22 at 7:35

Oct
8
awarded  Popular Question
Sep
23
comment Is it normal for the chain to slip in an 'extreme' gear?
As for "authoritatively discarding" something... Imagine someone stopping by a car mechanic and telling him "I always filled up at Chevron and my car worked fine. But yesterday I decided to try Shell and now my radio is dead. Why did Shell kill my radio?" I hope you understand that the mechanic can "authoritatively discard" Shell gasoline as a factor in this case, even if it is "not his question".
Sep
23
comment Is it normal for the chain to slip in an 'extreme' gear?
@Blam: But it is my answer. Moreover, what is specific to problems that might pop up in small-to-small configuration (including the matter of slip) is addressed in the second and third paragraph of my answer. The rest of my answer addresses misguided comments about crosschaining in general. I think I made it pretty clear by the introductory sentence.
Sep
23
comment Is it normal for the chain to slip in an 'extreme' gear?
@Blam: No, no, no. One more time: without any small-to-small specific mechanical interference, the question is not about small-to-small. It is my answer. Claiming that under such circumstances it is about small-to-small is no different than claiming that it is about red bikes. So I hereby authoritatively discard any small-to-small specifics from this question as nonsensical. Does it make it clearer?
Sep
23
comment Is it normal for the chain to slip in an 'extreme' gear?
@Blam: The question is about a specific degree of crosschaining. It is not really about small-to-small specifically as it is not about red-colored bicycles. There's no fundamental difference in crosschain-induced wear in either case, barring mechanical interference I mentioned above. Moreover, other factors being equal, big-to-big produces more stress in the chain than small-to-small. The only reason trim feature is targeted at big-to-big config is that 1) it is more useful, 2) it is difficult to implement both in mechanical setup. Electronic shifters can trim in both directions.
Sep
23
comment Gearing on drivetrains
Long steep hills a problem? In which direction? Uphill or downhill?
Sep
21
comment Is it normal for the chain to slip in an 'extreme' gear?
Well, after stating the obvious for the third time I can do only one thing left to do: issue a troll alert. So here goes: Troll alert!!!
Sep
21
comment Is it normal for the chain to slip in an 'extreme' gear?
Finally, you continue to conveniently ignore the argument that I already presented: FD manufacturers providing direct support for crosschaining. That alone allows me to reiterate what I stated above and close this debate. I did all I could. Anyone who still doesn't get it will heave to seek alternative educational opportunities.
Sep
21
comment Is it normal for the chain to slip in an 'extreme' gear?
@Carey Gregory: Providing evidence for basic facts is difficult for several reasons: 1) it is not the lack of evidence, it is the abundance of it that makes it difficult to make the pick, 2) it is hard to figure out what exactly caused the opponent's confusion, which makes it unclear what exactly needs to be addressed, 3) nobody's really "talking about it" - people don't talk about what's taken for granted. Now, for one example, find a video showing Contador's climbing technique and you will see that he crosschains a lot in big-big combination, esp. when he rides a compact with 32 in the rear.
Sep
21
comment Is it normal for the chain to slip in an 'extreme' gear?
@Daniel R Hicks: That's what I mean by "mechanical limitations". And the primary factor here is actually the geometry of the frame. Chainstay length is one of the primary parameters here. Frames with long chainstays produce much narrower chain sweep angle and no chain interference even under extreme crosschaining. Frames with short chainstays produce a wide sweep angle - they are prone to interference, like the one you describe.
Sep
21
comment Is it normal for the chain to slip in an 'extreme' gear?
@Carey Gregory: It is hard to "provide evidence" for something that is a basic fact. It is like asking to "provide evidence" that 2+2 is 4. Just look what pro-racers do. But in any case a solid piece of evidence is right there in my answer and has been there from the very beginning. (For some reason you decided to conveniently ignore it.) On more time: drivetrain manufacturers have been implementing "trim" feature in their FD specifically to facilitate crosschaining. And if with mechanical derailleurs this feature was sort of an oddity, with modern electronic FD this feature is a natural must.
Sep
21
revised Is it normal for the chain to slip in an 'extreme' gear?
added 72 characters in body
Sep
21
answered Is it normal for the chain to slip in an 'extreme' gear?
Sep
2
comment How many chain links do I need?
@mgb: "114 pins (56 links)" is a rather strange way to put it. Firstly, to avoid unnecessary confusuion, the accepted commercial nomenclature for such bicycle chain is "114 links". Secondly, a 114 link chain will indeed have 114 pins and will include 57 link pairs (inner+outer plate). Each pair contrubutes 1" of chain length. Thirdly, in more technical parlance, a 114 pin chain will have 57 links and 114 half-links. But again, 57 links, not 56. Where did 56 come from is not exactly clear to me.
Aug
31
comment Titanium frame has a crack - advice needed
@stranger: No, you are not looking at the right thing. The shallow horizontal line across the tube above the BB is not the crack. The crack is the diagonal curvy line that follows the outer edge of the weld on the seat tube. The weld in question is between the seat tube and down tube. (See mattnz's comment under the original question.)
Aug
27
awarded  Notable Question
Aug
19
asked Misadjusted B-screw: symptoms?
Mar
3
awarded  Caucus
Jan
14
comment Chain repeatedly tries to click into place without gear change
You need to come up with a more meaningful description of what happens. Where does the sound come from? Chainrings or cogs? What does "skip" mean? Does it skip gears laterally or does it skip teeth lengthwise? If it skips lengthwise, you should feel that your pedals skip too. Do you feel it or not?
Jan
8
revised What causes chain suck?
added 3 characters in body