Bikerepairing

Hi all. I'm going crazy here. I just installed a new chain, new cassette, new bottom bracket and new chainring (on a road bike, with shimano r7000 groupset). I had 3 great one hour rides, but yesterday, it felt like the bike was going to stop at any time.
Hard to describe exactly how it felt or what I heard. Felt a bit like when a bottom bracket is broken or failing, as it was creaking, squeeking and rattling. At some point I thought there was sand in my chain or the cranks had become loose.
Super weird.

Any thoughts???

Thanks!

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delbiker1 

Either non compatible components were installed, or they were installed improperly. A bit more info and pictures would be helpful.

ScottCommutes

My thoughts? That's bad!

I agree with delbiker1 above. The chance of incompatible parts or improper installation is much greater than the chance of a component failure in my opinion.

Go through the obvious. Slip the chain off of the front cog and verify that the bottom bracket turns correctly and that the cranks are tight. If that checks out, it's probably not your problem. Put the chain back on and try to reproduce the problem. Look and listen for where it comes from.

andrewclaus

Align the left crank with the seat tube and alternately squeeze and pull them apart. That should quickly point out a bottom bracket problem.

Andrew R Stewart 

It's not uncommon to have a bike that has had only some service done to revel the other needs soon after riding after the first service.

The first thing I thought of was a loose rear wheel that was shifting about in the dropouts when pedaling hard. But with so little info I can't say more specifically what it might be. I do suspect that if someone with experience were to look at the bike you'd have a far better idea. Is there a LBS near you (no location listed in OP profile..) Andy

ScottCommutes

Agree with Andrew above. All your new work might be fine and you might have developed an unrelated problem in your rear derailleur.

Aubergine 

Another possibility if your bike has long horizontal dropouts: the rear wheel got pulled out of position and the tire was rubbing on a chainstay. It happens to me on occasion when I did not tighten the skewer quite enough. Happened recently on my first ride on an old Bianchi Record.

easyupbug 

Did you remove the chain and all these events "bottom bracket is broken or failing, as it was creaking, squeeking and rattling." were heard? If so you should hear and feel to determine where the problem is in the crankset or BB and start disassembling.

wheelreason

Changed dispensary recently?...

oldbobcat

Have a pro mechanic look at it.

Koyote

I think incompatible parts would've caused problems before the fourth ride.

Did you use a torque wrench? Even if you did, check the torque values in everything that should've been torqued properly -- the BB, cassette, chainring.

Bikerepairing

Thanks for the fast and helpful replies everyone! I already thought of some of your suggestions, and will just go back and sort of reverse the process. I'm pretty sure I took the utmost care and precautions when installing the components, so I'm not sure what could have gone wrong, but maybe it's indeed just a very small issue such as proper torque setting and alignment.

Also, about the components : I reinstalled everything the same as it was. Same cassette, same (threaded) bottom bracket, properly lubed and very carefully installed after cleaning the area and inside of the frame), the same chain (cut to exact the same size), same chainring. (all from the r7000 105 groupset). One thing I didn't replace is the inner chain ring as I hardly use it, but surely this can't be causing it.
(didn't replace it as sadly, there are little or no hills where I live. The Netherlands. They call it "the low countries" for a reason.... &#129300.

If the problem still exists after reinstalling everything, I will definitely go to my LBS.

Crankycrank

A longshot but a possibility. Did you possibly over torque the BB tension nut on your non-driveside crank arm? BB would work fine for a while but over time could ruin the bearings if over torqued. Nut should be finger tight.

Duragrouch

On a different thread a few weeks back, someone reported similar bad sounds under pedaling force on a recently assembled bike, took to the local bike shop, said it took the mechanic five seconds to diagnose a bad bearing, either in the bottom bracket or rear wheel, can't recall.