EM600, EM900, M8150 crank weights confirmed

[RickBullotta]

You can remove the e13s with a hex wrench. To install the SHIMANO’s, you need the fixing bolt tool and a torque wrench with a narrow bit extender.

The single bolt design of the carbon e13s may have been part of the problem. The alloy ones are two bolts per crankarm.

 

[SillyPosition]

You can remove the e13s with a hex wrench. To install the SHIMANO’s, you need the fixing bolt tool and a torque wrench with a narrow bit extender.

Can you elaborate on what fixing bolt tool?

 

[BiGJZ74]

I can confirm that the weights of the different crank sets are as follows for those who are looking to replace the e13 cranks:

EM600: 555g SHIMANO STEPS EP8 Kurbelarmset FC-EM600 E-Bike schwarz
M8150: 445.4g SHIMANO STEPS EP8 Kurbelarmset Deore XT FC-M8150 Hollowtech II E-Bike schwarz
EM900: 447.6g SHIMANO STEPS EP8 Kurbelarmset FC-EM900 E-Bike schwarz
E*13 E*spec: 500g E*Thirteen

These are all 170mm. I think the EM900 and M8150 are the same exact cranks - no idea why the EM900 are more expensive. That is a pretty chunky weight saving for weight weenies over the em600 and small saving over the E*13 garbage cranks

Enjoy.

Edit: apparently m8150 and em900 are the same, but have a better finish. I'd rather have the XT branded ones!

Good to know about the em900's just having a different finish. I may just order the 8150's now

 

[BiGJZ74]

At 5ft6 + eMTB 160mm cranks are a no brainer. The decision gets a little dicey for 6ft+ riders. I went with 170mm, but imagine 160 or 165s would work just as well with bit more clearance.

I run 160's on my Rail, and 170 on my regular bikes at 6' tall only because the carbon cranks I run with SRAM drivetrains only came in 170. (X01.Next R). If I ran ALu cranks w/ SRAM or Shimano i'd go 165. I prefer shorter cranks. I'm gonna swap to 160 on my Rise as well. The loss in leverage on climbing doesn't matter on an eMTB. I also find I corner better with feet closer together front to back on shorter crank arms as I have more hip movement (not as flexible as I used to be lol)

 

[iJak]

Thanks for your input @BiGJZ74 I am having a tough time deciding if I want to go 160 or 165mm @ 5"11.
I will be replacing my 170 e13 with 160mm...now the only issue is which crank - Shimano XT or 5dev. I do want the 5dev ones, but the concern with that is wider qfactor by another 5mm (182mm).

5DEV Shimano eCrank

Shimano eBike Motor Cranks from 5DEV 5DEV's CNC'd Billet Cranks come in 2 sizes and include all the features of our standard cranks. Reduce rock strikes and pedal strikes. Improve performance through technical climbs and terrain with shorter crank lengths. Made in San Diego, California. Q...

ride5dev.com

 

[Longfellow78]

Thanks for your input @BiGJZ74 I am having a tough time deciding if I want to go 160 or 165mm @ 5"11.
I will be replacing my 170 e13 with 160mm...now the only issue is which crank - Shimano XT or 5dev. I do want the 5dev ones, but the concern with that is wider qfactor by another 5mm (182mm).

5DEV Shimano eCrank

Shimano eBike Motor Cranks from 5DEV 5DEV's CNC'd Billet Cranks come in 2 sizes and include all the features of our standard cranks. Reduce rock strikes and pedal strikes. Improve performance through technical climbs and terrain with shorter crank lengths. Made in San Diego, California. Q...

ride5dev.com

I would 100% go with shimano. Why risk another problem with potential spindle breakage again?

plus the shimano cranks are lighter

 

[Longfellow78]

Just received my M8150s from Ridewill Italy, they weigh a confirmed 420g with caps in 160mm length. A tidy saving over E*13 and won't destroy my motor. £115 delivered including taxes.

 

[iJak]

Alright - shimano it is!

 

[BiGJZ74]

Just received my m8150’s from Ridewill.it. It only took a few days from Italy to arrive. I actually had no issue with my e13 cranks except I like running 160’s on my eMTB’s. I actually prefer the look of the e13’s tbh. I run e13’s on my rail as well.

 

[Longfellow78]

I've got mine from there too. Not a particularly cheap upgrade but saves a few grams and good for piece of mind. Last thing anyone needs is a cracked spindle when its out of warranty. Did you remove the plastic stickers from the crank sides? Are they meant to be taken off or left on? I couldn't tell!

 

[Kamill]

Has anyone found compatible crank boots for the m8150 cranks?

 

[BiGJZ74]

Has anyone found compatible crank boots for the m8150 cranks?

I just used these Boots RaceFace Crank Boot for Alloy Cranks

 

[BiGJZ74]

I've got mine from there too. Not a particularly cheap upgrade but saves a few grams and good for piece of mind. Last thing anyone needs is a cracked spindle when its out of warranty. Did you remove the plastic stickers from the crank sides? Are they meant to be taken off or left on? I couldn't tell!

The sticker is protection...

 

[Tubby G]

Do we need the Shimano TL-FC18 crank mounting tool for tightening up the pre-load cap on the FC-EM600 cranks or is there a simpler way without having to purchase a specific tool ?