cougie uk
Guru
So which way are you turning the spanner ?
My pedal spanner has a sleeker handle than yours - I can put it inside the aluminium tube that's the handle of the garden rake for another 5 foot of leverage.
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So which way are you turning the spanner ?
My pedal spanner has a sleeker handle than yours - I can put it inside the aluminium tube that's the handle of the garden rake for another 5 foot of leverage.
Ajax Bay
Guru
- Location
- East Devon
Crank pointing forward (2:30 o'clock), robust spanner (at least 9" long) securely on pedal axle flats, facing backwards (9 o'clock), solid support under frame (directly under BB shell), welly end of spanner with coal hammer (care). Shock action.
Bar extension allows torque multiplication, but not as much as the instantaneous Nm of a 5lbs coal hammer at speed. The extension bends if you hit the end of it reducing the shock effect and torque 'spike' that's needed.
Bar extension allows torque multiplication, but not as much as the instantaneous Nm of a 5lbs coal hammer at speed. The extension bends if you hit the end of it reducing the shock effect and torque 'spike' that's needed.
ColinJ
Puzzle game procrastinator!
- Location
- Todmorden - Yorks/Lancs border
The last few times, I located the bike in an open doorway, leaned on the door frame, and stood on the pedal spanner with both brakes locked to stop the bike moving.
Ajax Bay
Guru
- Location
- East Devon
Standing on the pedal means you can't make sure the jaws stay securely on the flats (unless you use a toestrap or summat, maybe, or you have a helper).
Same goes for the long pipe option.
Same goes for the long pipe option.
ColinJ
Puzzle game procrastinator!
- Location
- Todmorden - Yorks/Lancs border
It does require careful balancing...
I tried doing the same thing with a chainwhip and a stuck lock ring - I broke the chainwhip!
rogerzilla
Legendary Member
For really bad ones, remove the crank and, if necessary, the chainrings. Ensure you can get the pedal spanner and crank at about 135 degrees to each other, using the floor as a fulcrum.
Pour boiling water over the end of the crank and IMMEDIATELY get it on the floor and bounce hard on the end of the crank and the spanner. The crank expands more than the pedal axle.
The torque for fitting pedals is surprisingly high - 45Nm average (Shimano). Precession usually tightens loose ones into the crank, but may not do so if the pedal is merely finger-tight.
Pour boiling water over the end of the crank and IMMEDIATELY get it on the floor and bounce hard on the end of the crank and the spanner. The crank expands more than the pedal axle.
The torque for fitting pedals is surprisingly high - 45Nm average (Shimano). Precession usually tightens loose ones into the crank, but may not do so if the pedal is merely finger-tight.
weareHKR
Senior Member
- Location
- North East Coast - UK
There's probably every suggestion under the sun in this thread now from people's own experiences.
We have all been there & tried most of them at some point, my last one finished using medium size Stillsons with an extension pipe. Completely destroyed the peddle but did the job.
I would also recommend running a tap through the threads before fitting lightly greased new pedals.
Good luck!
We have all been there & tried most of them at some point, my last one finished using medium size Stillsons with an extension pipe. Completely destroyed the peddle but did the job.
I would also recommend running a tap through the threads before fitting lightly greased new pedals.
Good luck!
monkers
Veteran
Not if they are hollowtech cranks. They'll then need replacing for deffo.
Last edited:
SheilaH
Guest
You are absolutely right! I hadn't spotted that they are 105 in the OP, and therefore hollowtech
What Monkers is alluding to is that hollowtech cranks consist of two clamshells bonded with some sort of epoxy glue, and heat could damage it.
monkers
Veteran
Retail price is £120
which is why I suggested making something up diy style.
monkers
Veteran
Buy two of these ...
https://www.machinemart.co.uk/p/ml126rw-50mm-fixed-castor-white-nylon/
and discard the brackets.
and one of these ...
https://www.diy.com/departments/var...square-tube-l-1m-w-25mm-t-1-5mm/254010_BQ.prd
A couple of bolts, a bit of heatshrink or tape to make a comfortable grip. Maybe a bit of paint that's lying around.
Just over 12 quid = sorted.
