Which Miranda cranks did you get?

[billium]

I want to try shorter cranks for my e160 but want to keep the cost down so Miranda seems the way to go but they have a dizzying array of cranks and Q factors (> 10 sizes) to choose from.

I would like to hear from anyone who has done this.

Which one did you get model, length and Q factor and how did it fit?

 

[irie]

For both our 2022 Trek Rail 5's with Bosch CX Gen4 motors I bought from Amazon UK:

"Miranda Mis17 Unisex Adult E Bike Fit Alloy Cranks Delta Style E Bike Cranks Delta - Black, 155mm"

Fitted perfectly, no issues. Didn't come with self extracting bolts so bought them elsewhere. Huge reduction in pedal strikes going from 165mm to 155mm.

 

[billium]

For both our 2022 Trek Rail 5's with Bosch CX Gen4 motors I bought from Amazon UK:

"Miranda Mis17 Unisex Adult E Bike Fit Alloy Cranks Delta Style E Bike Cranks Delta - Black, 155mm"

Fitted perfectly, no issues. Didn't come with self extracting bolts so bought them elsewhere. Huge reduction in pedal strikes going from 165mm to 155mm.

Looks like the Miranda's on Amazon are mystery Q factor too but with free returns I may just give them a try. If they are 'Q16' then according to Miranda they will be 2+2 = 4mm wider at pedals which is a shame since my e160 could take cranks 5mm narrower
150's and 155's are about £55 but the 152 are only £36 so I will try these.
I suspect I can use the original crank bolts and perhaps the self extractor cover ring too.
I will report back on how it goes

 

[billium]

Update:
Amazon Miranda cranks arrived today and I can confirm they are the 'Q16' size. No attachment bolts but the old ones off the Whyte Samox cranks fit - as did the self-extractor covers.
Change-out was a doddle, taking me 10 mins but 5 of those were inspecting and measuring.
All you need are 10 & 8mm Allen keys and some grease.

So my pedals are now 4mm further apart but 13mm higher. Each pedal misses the chainstay by 10mm+ so they could be ( perhaps should be) closer.
I may be overthinking the extra 4mm of width since my feet are wider than the pedals and I move them around way more than 2mm each.

Took a test ride on a technical climb up the South Downs that I know well. Lower section has several tall root steps and a tight sloping steep corner. I hit pedals on something here every ride.
Further up there are deep ruts where I often get side pedal strikes.
This trip I made it all the way up without either kind of pedal strike.

It initially felt like I was spinning faster cadence but that was just an illusion. After a few miles I did not really notice much difference in comfort or power so at this point the cranks are all positive with no real negative.

Even for those of you considering expensive shorter cranks (Hope etc) - these at £36 may make sense to 'try' shorter cranks before getting the expensive kind.

FYI I am 5'6" with shorter 30" legs with the e160 medium MX( Mullet) and got the 152mm cranks

 

[irie]

Update:
Amazon Miranda cranks arrived today and I can confirm they are the 'Q16' size. No attachment bolts but the old ones off the Whyte Samox cranks fit - as did the self-extractor covers.
Change-out was a doddle, taking me 10 mins but 5 of those were inspecting and measuring.
All you need are 10 & 8mm Allen keys and some grease.

So my pedals are now 4mm further apart but 13mm higher. Each pedal misses the chainstay by 10mm+ so they could be ( perhaps should be) closer.
I may be overthinking the extra 4mm of width since my feet are wider than the pedals and I move them around way more than 2mm each.

Took a test ride on a technical climb up the South Downs that I know well. Lower section has several tall root steps and a tight sloping steep corner. I hit pedals on something here every ride.
Further up there are deep ruts where I often get side pedal strikes.
This trip I made it all the way up without either kind of pedal strike.

It initially felt like I was spinning faster cadence but that was just an illusion. After a few miles I did not really notice much difference in comfort or power so at this point the cranks are all positive with no real negative.

Even for those of you considering expensive shorter cranks (Hope etc) - these at £36 may make sense to 'try' shorter cranks before getting the expensive kind.

FYI I am 5'6" with shorter 30" legs with the e160 medium MX( Mullet) and got the 152mm cranks View attachment 142456 View attachment 142455

Wanted to wait until you'd tried them before commenting. Our are also a bit wider than the stock 165mm ethirteen cranks but when riding didn't notice the few extra mm each side. Went from 165 to 155 and far less pedal strikes, now only get them when being careless on deeply rutted South Downs tracks used by farm/offroad vehicles.

I'm 5'10" with a 32 inseam, and wife is 5'7" with a 30" inseam, both with Trek Rails. No reason to buy 'nicer' cranks, if these bend then at least the motor is being protected a bit more than if the cranks were stiffer. Also, if they are bent then if they can't be straightened they're so much cheaper than for example Hope cranks (1/3 the price?) that I'll just buy another set.