r/bikewrench

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So I have a Rockrider ST120. It originally came with a narrow-wide teeth chainring that relied on two, very poor quality, plastic discs as "chain-guides". These two discs broke and my chain kept dropping.

To remedy that I had bought this Shimano Cues narrow-wide teeth chainring. Thing is, at that time (which is last December) I have NO idea that a Linkglide chainring needs a Linkglide chain. So I kept using the original KMC Z9 chain that my Rockrider came with.

However recently it started dropping a lot and I could see space between the chainring and the chain, so I got this new KMC X9.

So my question is: Does this KMC X9 fit well with my Shimano Cues crankset or do I need to buy a Linkglide chain ?

This is my current Drivetrain:

1. Shimano Cues FC-U4000-1 square tapered crankset.

2. KMC X9 chain

3. Microshift Advent 11-42T 9 speed chain

4. Microshift Advent RD

5. SRAM X5 9 Speed RD Shifter.

Will KMC X9 be okay or do I need Linkglide chain for my Cues crankset ?

Alright so I’m getting a bit of a headache trying to figure out if what adapter I could use. I’m building up a kona sutra ltd frame, which has a flat mount frame and fork. I’m going to use it pretty heavily loaded since I’ll be cycling from Japan to Europe. I still have some Trp spyres laying around that I want to use, but they are post mount. I’d prefer to run a 203mm front rotor and 180mm in the back, and although there are some flat to post mount adapters I’m not sure which ones I can use.

Also not sure if it’s even smart to go up to 203mm because of the added force on the fork, so I’d be okay with 180mm in the front too. I think the frame is designed around 180mm rotors if that helps.

Would the ones by Trp I added in the pictures work, since the bike is already based around the 180mm?

Edit: Alright so 203 in the front is not going to happen, I’ll get a 180.

I have a Giant Escape 3 and the circular piece I circled in red has come loose. It looks like it has four posts where it screws into the third gear but two of the posts broke yesterday.

I have no idea what to call this part. It looks like it's function is to catch the chain and slide it onto the final gear when shifting so the chain doesn't come off, but searching stuff like "chain guide" or "chain guard" yields different results.

It looks like I'd have to take the pedal off to swap if I can find a replacement, and I'm concerned this part only comes as part of a set with the gears and pedals in the first place. Are these things purchasable solo or am I better off just going to a bike shop?

I'm about to purchase a used bike. The one that is at the top of my priority list has a weird stain on the seat tube. The seller says that this is not rust, has been like this for ages and can't be wiped away. Overall, the bike is in good conditions... but this throws me off a bit.

Any idea what it is and if/how to get rid of it?

Hey everyone, I've had this bike for about 1-2 years now, and its a great bike, but the chain has been rusting for a few months now. I always keep it in a shed and the only time it get wet is when I wash it. I always lube the chain after washing it, I let it dry in the sun for a few hours and then let it spend the day in the shed before lubing it with squirt, wax and water emulsion lube. Also if I were to replace the chain, should I replace the transmission as there is a tiny bit of rust on there too, or do I even need to replace it?

I got a bike 2 weeks ago from a dealer,brand new its a Giant Talon 3 GE,went to clean the chain and cassete and while removing the wheel i noticed a small piece fall of to the floor and upon further inspection i noticed some paint chiping on the part where the hanger is.Should i be concerned and file a waranty or is this cosmetic and easy to solve with some matched paint and clear coat?

Hi y'all just bought this from another guy and this happened. Do I just need to tighten the hub?

I want to intall this Decathlon bike rack, wich came with standard M5 screws.

This is an old (Probably 2013-14) Rockrider 500 (26") bike, so I was expecting the M5 screws to fit, but turns out that they were too big, then I just found M4 screws to be too small. What's even odd is that the top screws fits perfectly.

I thought that they could be some sort of imperial screw (11/64, 3/16) but this are not quite standard here in Spain.

Does anyone found this same issue or might know which screw size should I use?

Is it normal Shimano Deore 1x11 cassette backlash?

It was like this from the beginning when i bought bike as brand new. Does not seem to cause any issues, but I am still wondering if this is ok, or should I be worried.

Hi there - just found out I have a problem with my barrel adjuster (I was changing shifter cables. Generally trying to do a lot of servicing myself to learn a thing of two) as it doesn't screw in fully. Is it the threads in the derauiler or is it the adjuster itself?

Can I buy a replacement or what would you do?

I managed to get the tension I wanted but going forward this is going to be very annoying. Help!!

i was about to clean my brake pads when i noticed that i couldn't loosen the quick release skewers on my rear wheels. no matter how hard i try to rotate it counterclockwise, it doesn't budge at all. i also tried loosening the nut on the opposite side but the plastic cover just fell off. i need help xD

Almost every part is new, the noise started after using the newest parts(carbon wheel DT Swiss Arc t1100 and cog 17t fixed).

I got this old Raleigh record from a local bike shop that I frequent. It currently has a 27-in wheel in the back and a 24 inch s5 (iso 547) wheel in the front. The problem is, that there's only two tires available for the S5 size currently and I'm not going to be able to have a matching pair of tires to make it look nice, let alone have options for something of better performance. I'm no stranger to converting 27 in to 700c in the back, but it looks to me like an iso 571 Just might fit in the front, maybe not with the current brake reach, but possibly with a more modern road bike caliper in place of this seemingly medium reach caliper. I currently have 11.5 mm of space between the top of the tire and the reflector that also would be removed. I think I would need 12 or 14 mm in order to handle the iso 571 wheel.

Bought a new bike, out of the box gears didn’t stay on but I got the bike shifting good by adjusting the cable. Took a look at the derailleur and it looks like in the photo and I was wondering is it supposed to be like that or is it bent? The bike shifts good so do I need to be concerned and can I cause damage by riding it like that?

Hi all,

I have hydraulic disc brakes on my commuter. Rode the bike through winter. In the last couple weeks the brakes have become SUPER noisy. The front is the worst. But rear is squeaking too. The noise starts and grows as I finish my stop, and worse the harder I brake.

I’ve cleaned the rotors and the pads but wondering if I need to swap the pads. Here is a pic of the front pads, any advice if these are glazed or worn? Picture was taken before cleaning.

Hey all, I recently got a 9 speed cassette for my bike (HG-900, the 11-32 version). Before I bought I measured the freehub to be about ~35mm long, which from my previous research meant it was compatible with 8/9/10 speed cassettes. I can’t get the last cog in the cassette to seat properly no matter what I do. I don’t think there’s any spacers on my freehub, so I’m not sure why it isn’t fitting. I don’t see any extra spacers in the cassette itself, since gears 1-7 are riveted together.

attached is a video of me putting on the cassette. Sorry it’s kind of shaky and awkward, I’m only using one hand. Thanks for any help, I’ve been trying to put this on for hours now.

EDIT: I think this hub is actually a 7 speed hub after measuring the splines from the base of the hub, it's about 30mm, which isn't as long as the 8/9/10 hub. I wasn't measuring it correctly before.

for context, the disc is wobbling but it's not warped, so i'm thinking maybe the thingie in the picture is not screwed on straight so i want to remove it and hopefully put it back the right way.