Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Click/Pop on Pedal Downstroke

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Click/Pop on Pedal Downstroke

Old 08-03-14, 04:03 PM
Guy on a Bike
Thread Starter
TreeUnit's Avatar
Join Date: Mar 2006
Location: C-Bus
Posts: 249

Bikes: Chromoly Univega with Nexus Hub

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Click/Pop on Pedal Downstroke

I am experiencing loud, jarring click (sometimes a double click) once per pedal downstroke. It occurs on both the left and right pedal strokes in the 2 0'clock position. It is louder on higher gears

Here are the relevant components
BikesDirect "Bottecchia" Carbon Road Frame
Shimano 105 5600 Hollowtech Crankset
Shimano 105 5600 Hollowtech BB
Time Atac Steel Clipless pedals
Bontrager ProXlite Wheel/Hub, with Ultegra 10-speed Cassette
Ultegra Derailleur (not sure of ##)

A quick search found several past posts describing a similar "downstroke pop" problem, but the solutions found in those threads have all been accounted for in my case.

I have:
- tried another wheelset.
- switched rear derailleurs (from shimano 105 to current Ultegra Derailler)
- purchased a new chain of the same make (Sram 1031)
- switched Pedals (Time Atac to Sylvan Prime)
- purchased a new Bottom bracket of the same make.

- removed, cleaned, and amply regreased the bottom bracket, and screwed it on as tightly as my tool would allow me.
- removed, cleaned and regreased my crankset, tightening its screws as tightly as reasonably possible.
- switched back and forth between Sylvan and Time pedals several times, each time completely degreasing the parts before applying new grease and screwing them on as tightly as reasonably possible.

One thing that sorta worked was lubing the chain. I applied an ample amount of Pedro's Chainj lube, and the drivetrain was silent... for two blocks. Then the popping resumed.

Can anyone recommend other things to try?

Help Me Bike Mechanics... You're my only hope.
TreeUnit is offline  
Old 08-03-14, 04:19 PM
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 37,132

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Mentioned: 132 Post(s)
Tagged: 1 Thread(s)
Quoted: 4997 Post(s)
Liked 1,110 Times in 648 Posts
OK the single most common cause of this is a loose crank arm on the spindle. Test by putting the cranks horizontal while coasting, then stand and shift weight down hard. Sit, gently reverse the cranks, and repeat. If you can feel the hard click doing this you have a loose crank.

However since chain lube has an effect, I suspect that you're feeling the chain going over the shift gates (cut or shaped teeth, twice on the outer ring) as it engages. Like a train passing over a switch, this can cause a click. You'll feel it more when using combinations where the chain feeds at an angle (outer with inner, or even outer with outermost) because the chain can move over a bit at the gate, then bite hard on the 1st full tooth.

As you see, better chain lube will help, and this often resolves with some break in.

If this is happening in the inner ring (which usually has no shift gates) while on the outer few rear sprockets, you might be feeling the chain snag on the pick-up pin on the inside face of the outer. This is common with the inner and outermost sprocket or two of 10s and 11s bikes, and the usual cure is to avoid the combination. If that's the issue and it bothers you, it can be improved by increasing chainring separation (but not always cured).

Anothe rpossibility is pedal movement in the arms. Usually you'll only feel it on one side, but the cure is to tighten the pedals, or remove and clean threads and faces then reinstall.

The last possibility is spindle movement in the BB, or BB cups or bearings not tight on the frame. This allows the crankset to rock left and right where the play is. If you can't verify other causes (even if not cure them) have someone check for spindle or BB play.
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline  
Old 08-05-14, 05:05 PM
Senior Member
Join Date: Mar 2006
Posts: 484
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Also make sure to remove and grease pedal threads
I had a creak even with very tight pedals, ony after greasing diditgo away
lennyk is offline  
Old 08-06-14, 05:02 AM
Senior Member
Join Date: Jan 2013
Location: South Jersey
Posts: 2,188
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 688 Post(s)
Liked 713 Times in 428 Posts
Remove, clean and apply grease or carbon paste to your seatpost. Had the same noise the other day and the seatpost was the culprit.
dsaul is offline  
Old 08-06-14, 05:21 AM
Join Date: Apr 2007
Location: Syracuse, NY
Posts: 7,510

Bikes: 2008 Novara Randonee - love it. Previous bikes:Motobecane Mirage, 1972 Moto Grand Jubilee (my fave), Jackson Rake 16, 1983 C'dale ST500.

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 482 Post(s)
Likes: 0
Liked 10 Times in 10 Posts
Checking the Internet is fine but many people suggest "solutions" that make no sense. There is no noise that is exactly in sync with crank rotation that can be caused by either the chain itself, the derailleur, hub or anything outside of the crank/bb area. The simple application of logic is the best way to fix most problems on a bike. It's preferable to try tightening and cleaning all parts before putting money into new components, as clicks caused by a component being defective are very rare.
cny-bikeman is offline  
Related Topics
Thread Starter
Last Post
Bicycle Mechanics
09-17-20 10:07 AM
Bicycle Mechanics
05-05-15 11:38 PM
Bicycle Mechanics
06-10-13 07:59 AM
Bicycle Mechanics
05-06-13 05:52 PM
Bicycle Mechanics
07-26-12 07:14 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.