Pedals wrong way round.

[billwarwick]

I just put some new pedals on Bosch gen 4 and the pedals are the wrong way round . That is L pedal only fits on the right side and vice versa. The crank arms have never been taken off so does that mean that the bike was built like this? I never noticed this before. I tightened them up well but one still came loose. Never had a problem with the old pedals.Can the cranks just be swapped round and do I need a special puller? I’m a bit confused . Can I tighten the pedals up enough to keep them on even if they are on the wrong side ?

 

[Bndit]

Only logical explanation is that your new pedals are just marked wrong….

 

[Weeksy]

Only logical explanation is that your new pedals are just marked wrong….

or the crank arms are the wrong side ? is that possible with an Eeb ?

 

[billwarwick]

Just looked at cranks and the one that is chain side is marked 170L and the other one is marked 170R ?

 

[Weeksy]

and there's the answer then

 

[billwarwick]

and there's the answer then

But how is that possible? I’ve had the bike from brand new and the left side crank has definitely never been taken off

 

[Weeksy]

The simple answer is... you can clearly fit the wrong side cranks on the wrong side... at the factory. Someone fucked up.

Obviously with a MTB crank you've got a spindle on one side and a chain ring on the other. With an eeb you've got 2 spindles... if they're exactly the same, then they can be fitted incorrectly. Someone did that, then fitted the pedals... which almost defies belief as that must be what they do 100 times a day in the factory lol.

 

[billwarwick]

The simple answer is... you can clearly fit the wrong side cranks on the wrong side... at the factory. Someone fucked up.

Obviously with a MTB crank you've got a spindle on one side and a chain ring on the other. With an eeb you've got 2 spindles... if they're exactly the same, then they can be fitted incorrectly. Someone did that, then fitted the pedals... which almost defies belief as that must be what they do 100 times a day in the factory lol.

I assume an LBS would be able to rectify as they would have the correct tools? I can’t believe that the pedals didn’t come loose until I put new ones on.

 

[Weeksy]

I assume an LBS would be able to rectify as they would have the correct tools? I can’t believe that the pedals didn’t come loose until I put new ones on.

Yeah assuming you bought from them i'd be taking it in with a puzzled look of "wtf fellas" and seeing what they say. It's a 5 min job.

 

[billwarwick]

Yeah assuming you bought from them i'd be taking it in with a puzzled look of "wtf fellas" and seeing what they say. It's a 5 min job.

I bought it 100 miles away during Covid so won’t be going back there. I can get someone local to do it . Thanks for your helpful comments,

 

[Darren66]

I bought it 100 miles away during Covid so won’t be going back there. I can get someone local to do it . Thanks for your helpful comments,

Get yourself a crank removal tool and save yourself £20 labour at the LBS

 

[billwarwick]

I think it needs a special tool?

 

[RustyMTB]

Yes, the tool above.

It's a gen four Bosch, they all have the same spindles. You thread that tool in, wind it down with a ratchet or a spanner & the crank is pressed out. To reinstsall it on the correct side, you wind it back on with an 8mm hex tool I.e. Allen key, T wrench, whatever.

 

[Wilko58]

I think it needs a special tool?

It depends on how your cranks are fitted. If they are self-extracting, you only need 8 and 10 mm hex keys. Use the 10mm clockwise to ensure the cap is tight, then insert the 8mm and turn anti-clockwise (both sides) and the crank will come off.

 

[Giff]

You’ll be ok going backwards.

 

[Amber Valley Guy]

Once had a a Norco hybrid (not an ebike) that I bought from Evans and decided to swap the pedals a few years later as the bearings were shagged. Couldn't shift the chainring side pedal for the life of me, so I removed the crank with pedal attached and took it into work. Me and a mate eventually removed it, Evans had somehow fitted a Left side pedal (and left hand thread) into a right side crank arm. No wonder I couldn't shift it I was tightening it up. The soft aluminium crank thread that side had been recut by the pedal (I presume they'd used a power tool to get it in). Utter tools at Evans. Then bought a used Right side crank arm off eBay for a few quid and aso a pair of lh and rh 9/16" x 20 you tap set 'just in case'. Still have the Norco, I converted it to an ebike with a Bafang BBS about 5 years ago.

 

[Stihldog]

When you remove the crank retainer bolt (up to 50nm torque), and the dust cap, sometimes the cranks don’t just fall off. You need an extractor tool (eg shown above). There are a few different types available.


The fine threads are generally clockwise. With the cranks removed it’s also a good time to check the torque of the castle nut (counter-clockwise), which holds the chainring in place.

Incorrect assembly has happened to me before. (Axle bushing). Was it the factory? The LBS mechanic? A rogue prankster? Regardless, something’s not right.


Yup…it’s possible that the cranks were installed wrong …and nobody would notice until the pedals fall off.

Look what some fule did to my bike. A mistake or done on purpose?

Btw…no animals were harmed.

 

[billwarwick]

Bike is in for service so getting sorted now. Thanks for all your comments

 

[MartinShires]

I just put some new pedals on Bosch gen 4 and the pedals are the wrong way round . That is L pedal only fits on the right side and vice versa. The crank arms have never been taken off so does that mean that the bike was built like this? I never noticed this before. I tightened them up well but one still came loose. Never had a problem with the old pedals.Can the cranks just be swapped round and do I need a special puller? I’m a bit confused . Can I tighten the pedals up enough to keep them on even if they are on the wrong side ?

I'm assuming that when you tightened both pedals that the only way they could be tightened, would be turning the allen key towards the back end of the bike? (When of course both pedals correctly fitted should mean that you tighten them by turning the allen key to the front). I have made this mistake once and immediately realised because of the latter - because of the direction of your pedalling motion, they will always loosen. If it's the E-thirteen original cranks that tend to come with the motor, then (1) The cranks can simply be swapped around without the need to remove the pedals and (2) the e-thirteens are not self removing, so yes you'll need a simple crank puller Park Tool TOOL Park CrankPipeBillet Pull | Biketart

 

[Arminius]

Honestly, does anyone notice (remember) which direction to turn the pedal screws? Inserting I turn to the left / to the right until finding grip. Taking off I try to push to the one and to the other direction until it starts turning - if not I take a closer look what is marked on the pedal/crank.

BTW there is a Crankspert on this forum!

Pic of the Day

......................instead of slip sliding around in the goo... :LOL: ...but to each his own. I know some people like the goo...LOL! I sure don't! :p

www.emtbforums.com

 

[Plummet]

So much talk on something so basic. Swap the cranks around abd carry on riding. It's not rocket surgery.

 

[#lazy]

So much talk on something so basic. Swap the cranks around abd carry on riding. It's not rocket surgery.

Jonny 3 legs e’ll be on soon for the next level