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Literally Lewis Hamilton posted:6/7/8 chains are cross compatible. Just make sure you get a chain that is long enough for how many links your current chain is. You’d need to cut the chain down to be the same length as your current chain, presuming it’s the right size. Yes and not sure how much you already know but you'll need a chain tool to shorten the new chain to match your old one, and maybe a set of quick-link pliers to connect the new chain up when the length is set. You might be able to get away with snapping the quick link in w/o the pliers (set it, and then stand on a pedal while stationary to lock it) but if you ever want to take it off for cleaning or maintenance then definitely get a set of pliers.
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Dec 26, 2021 16:48
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Handy visual:
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Dec 26, 2021 17:06
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There is one trap w 7/8 speed chains. SRAM quicklinks have a 7.1mm pin length while Shimano will be 7.3mm so if you use a SRAM quicklink in a Shimano chain you'll have a stiff link. KMC sells 2 different 7/8 speed chain types and links for this reason. May as well get one that works with a SRAM quicklink.
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Dec 26, 2021 17:11
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Champion, thank you all I got myself a chainbreaker as part of my project bike and am confident using one
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Dec 26, 2021 23:04
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Shimano, why do you use a different preload cap/fixing bolt between GRX 600 and 800 series?? Why???
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Dec 30, 2021 03:47
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Edit: ha! I'm an idiot in the wrong thread.
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Dec 30, 2021 15:31
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CopperHound posted:
Just returning to this post because I finally bought and fitted one of these (on the recommendation of my local bike co-op as well as CopperHound.) Problem is it always comes loose after a few miles of pedalling. I torque it as hard as I can by hand, and the second time I used blue Loctite as well, but it still came loose. Not sure what my next step should be. Red Loctite?
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Jan 4, 2022 20:12
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Al2001 posted:I torque it as hard as I can by hand, and the second time I used blue Loctite as well, but it still came loose. Not sure what my next step should be. Red Loctite?
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Jan 4, 2022 20:40
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I have a gravel bike and I'm having some issues with tubeless tires. Until recently I was still using tubes, but one of my tires was popping the tube inside it every ride - this happened three rides in a row. I couldn't find anything sharp sticking through the tire and wasn't sure why this kept happening, so I thought I would try setting them up tubeless instead. I did that and the tire that was good before is just fine, holding air and everything, but the tire that was popping its tubes previously is now doing a slow leak, losing about 20 psi per day. I know sometimes it takes the wheel spinning a bunch to spread the sealant around so it does its job, but I've ridden about 30 miles on it and I thought that would have been enough to spin the sealant and seal up any little holes. Any thoughts as to what might be going on? My thought is to take it to a shop and ask them to redo the tubeless setup, I don't mind paying a little money, but if it's a larger problem with the tire itself then I'd like to know that before I go in, or at least have the best idea possible how to communicate with them what's going on.
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Jan 4, 2022 21:27
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I finally opened up the one gravel tire tubeless wheel I had, which was also always leaking a bunch, and the answer was that my rim taping job was crappy - it was peeling up in various places. maybe try re-taping the rim after cleaning it?
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Jan 4, 2022 21:35
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Al2001 posted:Just returning to this post because I finally bought and fitted one of these (on the recommendation of my local bike co-op as well as CopperHound.) Problem is it always comes loose after a few miles of pedalling. I torque it as hard as I can by hand, and the second time I used blue Loctite as well, but it still came loose. Not sure what my next step should be. Red Loctite? I've got one of those on my commuter and yeah just a whole bunch of torque with 2 BB tools
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Jan 4, 2022 21:39
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gohuskies posted:I have a gravel bike and I'm having some issues with tubeless tires. Until recently I was still using tubes, but one of my tires was popping the tube inside it every ride - this happened three rides in a row. I couldn't find anything sharp sticking through the tire and wasn't sure why this kept happening, so I thought I would try setting them up tubeless instead. 2) What PSI are you running? I don't know what's common for gravel. It could be a whole host of things, but most likely comes down to the tape job or valve stem. Can you see any sealant leaking anywhere? Here anything? Visual inspection is generally going to be the best bet here. If it's leaking around the bead, check that your tire isn't defective, or that your tape isn't too thick and preventing bead seat. If it's coming out of the spoke holes or near the valve, you either have a hole in your tape, or bad seal on your valve.
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Jan 5, 2022 02:15
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If the tube kept popping and it keeps leaking air when tubeless id assume it's time for a new tyre if its old. Assuming you've checked the rim tape first! Also for any cracks in the rim, cause that happened to me once 
hemale in pain fucked around with this message at 11:47 on Jan 6, 2022 |
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Jan 6, 2022 11:42
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hemale in pain posted:If the tube kept popping and it keeps leaking air when tubeless id assume it's time for a new tyre if its old. When you assume you make an assegai of you and me
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Jan 6, 2022 11:48
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I bought a Framed Minnesota 3.0 a few weeks back. The brakes were squealing so I had the rear wheel off and the brake pads out to sand off the glazing. Meanwhile, my son turned the cranks until the derailleur broke. I know X7 is discontinued, but are X7 shifters compatible with a GX derailleur?
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Jan 7, 2022 16:29
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iirc all sram shifters/derailleurs with the same number of gears are intercompatible
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Jan 8, 2022 16:29
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Clark Nova posted:iirc all sram shifters/derailleurs with the same number of gears are intercompatible No, that was only true for 10-speed systems. It was great, but must not have created enough value for shareholders. Some of the lower end stuff for OEM like X7 has weird compatibilities.
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Jan 8, 2022 16:33
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X7 is 10 speed so yeah that's compatible with anything else sram 10s. With 11 and 12, you mostly can't mix mtn and road/cx but anyway yes a 10s x7 shifter will work with a 10s gx derailleur.
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Jan 8, 2022 17:01
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Do these quill stem adapters of this particular type simply not have a top cap that interacts with the stem? Just install the adapter and then torque down the stem without any top cap adjustments, since it won’t pull it down?
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Jan 9, 2022 03:09
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You don't need the downward force if you aren't preloading a bearing!
norp fucked around with this message at 14:31 on Jan 9, 2022 |
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Jan 9, 2022 04:10
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Old weight weenie trick is to remove your top cap after installation.
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Jan 9, 2022 04:33
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It just feels wrong!!
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Jan 9, 2022 11:48
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Well the step after tightening the stem is to remove and reinstall the top cap with just enough torque to stop it spinning. It's literally cosmetic at that point
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Jan 9, 2022 14:32
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Aargh, I dropped my bike while standing around chatting it up after a group ride today. Drive side down… and I’ve bent the built in derailleur hanger on my steel frame. Is this something worth even thinking about fixing myself without a hanger alignment tool?
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Jan 9, 2022 14:46
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wooger posted:Is this something worth even thinking about fixing myself without a hanger alignment tool? If you’re asking the question probably not.
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Jan 9, 2022 15:03
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e.pilot posted:If you’re asking the question probably not. Well it’d be easy to bend it back sort of true with an adjustable spanner. Agree though, the existence of specialist tools means it probably matters rather a lot to be precise.
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Jan 9, 2022 15:19
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Is there a bike co-op near you? Last time I bent the hanger on my MTB, I paid for half an hour to use their alignment tool. Since you said it was steel with an internal hanger, is it an older bike? How many speeds does the rear have, and do you have indexed or friction shifters? With a older 6, 7, 8 speed and friction, you might be able to get away with the adjustable wrench.
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Jan 9, 2022 18:19
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PolishPandaBear posted:Is there a bike co-op near you? Last time I bent the hanger on my MTB, I paid for half an hour to use their alignment tool. 2018, 105 11 speed. They still make steel bikes because steel is real etc. No co-ops as far as I know, there are occasional drop in sessions but always when I’m on rides, so I’ll take it to a trusted shop.
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Jan 9, 2022 20:42
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I just bought a hanger alignment tool. It’s not terribly expensive and it’s nice to have.
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Jan 9, 2022 23:21
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Hanger alignment tool is super useful to have, and given they are basically a bar with a bolt aren't too expensive for bike speciality tools. I have a bike with a hanger that'll go out of alignment if you look at it funny so it paid for itself pretty fast
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Jan 15, 2022 12:15
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norp posted:Hanger alignment tool is super useful to have, and given they are basically a bar with a bolt aren't too expensive for bike speciality tools.  even a cheap one works well
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Jan 15, 2022 13:23
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The amount of times friends have told me their hanger is straight and tool confirms it is not makes it worthwhile. Everyone swears their hanger is fine but it doesn’t take much on 11 or 12 speed systems to get it out of whack.
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Jan 15, 2022 14:13
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norp posted:Hanger alignment tool is super useful to have, and given they are basically a bar with a bolt aren't too expensive for bike speciality tools. I had to buy one after I paid a shop to do an alignment and found out that they flat out lied about having the tool and used an adjustable spanner instead (steel frame). Worth it.
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Jan 15, 2022 20:56
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Note that if you can wait a few weeks for shipping a clone of the park tools hanger tool is like $30 on AliExpress Or if you have a drill and an M10 bolt you can just make one with any straight piece of square tube or similar.
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Jan 16, 2022 08:44
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VideoGameVet posted:I had to buy one after I paid a shop to do an alignment and found out that they flat out lied about having the tool Wtf Surely shops should be checking hanger adjustment on bikes all the time. I don't know how you would conceivably do the task with a spanner. I've had my 11sp bike be impossible to dial in shifting with less than 2mm hanger error measured at the rim. Edit: on a 700c rim 2mm out at the rim is 0.33° - and given you only need to adjust half of that the "spanner" would have to eyeball 0.15° norp fucked around with this message at 08:51 on Jan 16, 2022 |
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Jan 16, 2022 08:49
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Amazingly I found a bike repair shop (run as a coop, but not a US style bike coop place) near me that fixed the derailleur hanger and re-indexed my gears for £6, which seems like madness. I know someone that works there part time and they’re all well trained. Good to know for next time.
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Jan 16, 2022 12:48
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So this happened earlier. About halfway through a 100km ride my front shifting started acting up: couldn’t get into the big ring. I figured it was cable stretch and just worked through it. But just before I got home my left crank popped off. That’s never happened before… So my ride finished with some 1 legged drills. Bike is a 2021 Aspero. BBright bottom bracket. Shimano GRX cranks. 2000km on the bike. I’ve cleaned it up and will put it back together later. Maybe switch out the BB at that time anyways - the OEM ones specced to the Aspero are not good I can can already feel a good amount of grit in the bearings as a result of PNW winter riding. Likely culprit here is under torque at time of assembly, correct? Or am I missing something?  
mexecan fucked around with this message at 02:46 on Jan 17, 2022 |
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Jan 17, 2022 01:07
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Could you post pictures that aren’t tiny?
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Jan 17, 2022 01:20
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mexecan posted:So this happened earlier. About halfway through a 100km ride my front shifting started acting up: couldn’t get into the big ring. Is the drive-side crank pulled out after the fact? If only that much is exposed on the NDS despite the DS being flush with the BB, then something is terribly wrong. But also yes, the usual culprit is not enough torque on the two pinchbolts.
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Jan 17, 2022 02:16
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TobinHatesYou posted:Is the drive-side crank pulled out after the fact? If only that much is exposed on the NDS despite the DS being flush with the BB, then something is terribly wrong. But also yes, the usual culprit is not enough torque on the two pinchbolts. Edited for larger pics. Yes. The DS crank isn’t flush there. Thanks. I have a torque wrench so will put it back together tomorrow.
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Jan 17, 2022 02:48
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