Rail (750Wh) Crank Arms

Dave_B

E*POWAH Elite World Champion
Subscriber
Aug 29, 2020
1,420
1,542
Newquay
I think I'm going to fir shorter 155mm crank arms.
For those that have done this, what crank arms did you fit?
I can see Hope do some.......
 

Dave_B

E*POWAH Elite World Champion
Subscriber
Aug 29, 2020
1,420
1,542
Newquay
E*THIRTEEN are also an option and a great deal cheaper
 

raf

Member
May 7, 2020
18
5
UK
Has anyone tried the FSA CK 220 155mm crank? They are a third of the price of hope!
 

Citius

New Member
Sep 24, 2022
8
1
Washington DC
I think I'm going to fir shorter 155mm crank arms.
For those that have done this, what crank arms did you fit?
I can see Hope do some.......
I just picked up the Hope 155 HCEB55PU and the 34t chainring, once I get them installed I'll let you know how they go.
 

johnboy68

Member
Nov 1, 2022
11
0
USA
I got the E*13 160mm cranks. A lot less pedal strikes. Do shorter cranks need to be configured in the app for the bike?
 

Mikerb

E*POWAH Elite World Champion
May 16, 2019
6,138
4,670
Weymouth
What QF do I need to look at for my MY22 rail? Miranda seem to be one of the only places that have 155mm Bosch Gen 4 cranks in stock.
I think the Miranda website tells you how to measure to ensure the q factor of their crank provides enough clearance for your chainstays.
 

Roy D

Member
Subscriber
Oct 29, 2021
43
34
Southern California
I’ve used Miranda 150 and 160 both with qf16. 150 was to short. Very hard to have your feet that close at 50/50. Really like the 160 qf-16. Wife likes the E-13 160 it’s narrow compared to Miranda
 

jono878

Member
Sep 17, 2022
29
3
bath
I’ve used Miranda 150 and 160 both with qf16. 150 was to short. Very hard to have your feet that close at 50/50. Really like the 160 qf-16. Wife likes the E-13 160 it’s narrow compared to Miranda
Miranda do a lot of cranks. did you mean q:16 as I've found these online MIRANDA Delta Double Diamond cranks.
 

Roy D

Member
Subscriber
Oct 29, 2021
43
34
Southern California
Yes the Q factor. I’m 5.8 with long legs. q16 is ok but if you have wide hips and can ride a 170mm arm I think they even go higher the q16.
Got these last week for my bike. Tried a few. My wife has the delta on hers

Kies Cranks 160 Q:16 Isis Cold-forged aluminium alloy Black Granite for E-BIKE
 

jbrown15

Well-known member
May 27, 2020
741
628
Chilliwack, Canada
5dev are the cool cranks. Not sure they fit your bike tho but they fit a couple of ebike motors

5Dev cranks definitely do not work with Bosch CX motors, I think they just assumed they would because they are both ISIS fitment. I bought a set and the left side crank arms contacts the motor, and 5Dev no longer lists them as a Bosch fitment. It's now only listed for Specialized Brose motors.
 

mcollins188

New Member
Nov 13, 2022
6
4
Salinas, CA
You may checkout Praxis. Although they come stock on Specialized they make for all motors.
My 2021 Turbo Levo came with 165.
My friends 2022 Turvo Levo came with 160.
I picked up his 160’s for cheap because he bought the Hope 155’s.
I bet you can find some good used deals out there on 160’s with more guys going to 155.
I am very happy with my 160 compared to 165. Never tried 155. I ride a size XL with 175’s on non-assist bikes so feel 160 is adequate.
 

ddbros

Member
Aug 8, 2020
17
9
Minnesota USA
I got the FSA 155mm cranks. 10MM shorter and 5mm closer to the stays (on each side!). I've noticed a big drop in the number of pedal strikes. I takes a ride or two to get used to them, but I don't even notice it now. I think I change gears more than when I had the 165's on but that seems to be the only negative. FSA's are dirt cheap too, so it's worth giving them a try.
 

JP-NZ

E*POWAH Elite
Feb 17, 2022
1,031
778
Christchurch - New Zealand
I got the FSA 155mm cranks. 10MM shorter and 5mm closer to the stays (on each side!). I've noticed a big drop in the number of pedal strikes. I takes a ride or two to get used to them, but I don't even notice it now. I think I change gears more than when I had the 165's on but that seems to be the only negative. FSA's are dirt cheap too, so it's worth giving them a try.
Thanks, have you got a link to the FSA cranks?
 

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