Miranda cranks

[drjarvis2003]

I have been using 165 miranda cranks for a few weeks now and the right hand one stripped and fell off. always use a torque wrench and check regular.
Using them on a shimano motor.
Anyone else had this happen?
Have herd of them bending before.

 

[Gary]

If it's on an E8000 motor replace with Shimano. They do a 165 XT level crank. Anything else makes no sense.

 

[R120]

Last year Miranda where the only option for shorter cranks, as Gary says Shimano now do 2 versions down to 165mm.

Sram and hope are bringing out cranks for the motor shortly too according to the tinternet

 

[drjarvis2003]

Forgot to say that I had a set of shimano 165s here, but had not got round to putting them on yet. Think they only cost about 36 quid.

 

[Deleted member 1478]

I have been using 165 miranda cranks for a few weeks now and the right hand one stripped and fell off. always use a torque wrench and check regular.

Yikes - that’s an odd thing to happen unless they came loose?
I put the 160mm Miranda’s on my Merida as I found I was pedal striking too easily. I want to avoid that at all costs - to try and save the E8000 BB bearings, which by accounts (here) are fragile. Short cranks are a good solution, but not if they crap themselves.

 

[Gary]

which by accounts (here) are fragile

Where did you read this?

 

[Deleted member 1478]

E8000 "bottom bracket" bearing play after 1400km - EMTB Forums

Pedal striking can prematurely hasten bottom bracket wear in my experience. Massive forces involved.

 

[Gary]

Don't remember anybody in that thread saying the bearings are fragile.
I alluded to them possibly not being up to hundreds of miles of DH levels of abuse. But I've nothing concrete to back that thought up. Infact I can't remember anyone in that thread (or the forum in general) even knowing what the specific BB bearings (dimensions) are.

My motor (the one in the video in the thread you linked to) bearings didn't go from pedal strikes.

Having said all that I'd prefer a crank arm to bend than the BB/bearings take the brunt of whatever KO hit they sustain.

 

[Jojo10]

Hello

Like others I'm thinking about to go down even to 160 on my Spectral:ON. The Miranda bend and fall off. Individual case?
Interestingly I had to retorque the crank arm clamping screws on my Shimano crank as they getting loose within some weeks. Maybe the clamping and spline are the problem itself. Should been monitored closely.
Anybody experience with the carbon Mirandas?

Thanks

 

[johnc]

Anybody experience with the carbon Mirandas?

Thanks

Wasn't she "The Brazilian Bombshell"? Chica,Chica Boom Chick!

 

[Gary]

Wasn't she "The Brazilian Bombshell"? Chica,Chica Boom Chick!

Dunno. Sounds like you need to remind us with pics of Brazillian bombshells

 

[johnc]

enjoy!

 

[Gary]

I'd like to take back my request

 

[jonathan horticulturist]

Where do I get those 137mm crank arms from?

@Kiwi in Wales

I want to equally piss off Gary and avoid pedal strikes.

Clown cranks FTW!

 

[Gary]

It doesn't piss me off.

I happen to love clowns

 

[R120]

I have put 400 odd miles on the Miranda 160mm with no issues, i have only had one pedal strike in that time though.

They are a bog standard crank, perfectly fine but nothin special.