Cruz carbon crankset with 24mm ti axle

[getmekd]

On my rockbros dub crank the bolt diameter is M16, and also i think cybrei dub crank is M16

[jonathanf2]

On my rockbros dub crank the bolt diameter is M16, and also i think cybrei dub crank is M16

I attached a photo highlighting the screw cover. It's slightly smaller than the regular 4 pin DUB tool. The pins on the Cruz crankset is slightly smaller, so I want to surce the tool that can remove the cover.

[glepore]

I attached a photo highlighting the screw cover. It's slightly smaller than the regular 4 pin DUB tool. The pins on the Cruz crankset is slightly smaller, so I want to surce the tool that can remove the cover.

Any auto parts store or Harbor Freight will have a snap ring tool that looks like a pair of pliers with pins that clamp in the tips at either 90 degrees or straight. While its really for removing snap rings I've used it as a universal pin wrench. https://www.harborfreight.com/snap-ring-pliers-with-interchangeable-heads-63845.html? Park tools makes a dedicated adjustable pin spanner but its over $30.

[jonathanf2]

Any auto parts store or Harbor Freight will have a snap ring tool that looks like a pair of pliers with pins that clamp in the tips at either 90 degrees or straight. While its really for removing snap rings I've used it as a universal pin wrench. https://www.harborfreight.com/snap-ring-pliers-with-interchangeable-heads-63845.html? Park tools makes a dedicated adjustable pin spanner but its over $30.

I messaged the Cycool Store that sells the Cruz crankset and they replied recommending circlip pliers. It makes me think there must be some tool available specifically for this 4 pin cover since there are several cranksets that use it.

https://www.aliexpress.us/item/3256807934909985.html

[glepore]

I messaged the Cycool Store that sells the Cruz crankset and they replied recommending circlip pliers. It makes me think there must be some tool available specifically for this 4 pin cover since there are several cranksets that use it.

https://www.aliexpress.us/item/3256807934909985.html

Yeah, those are what I meant by snapring pliers.

[benquick]

I received my crank today, and as I was installing the chainrings, I stripped one of the bolts. Honestly, it was my mistake as I was torquing the screws under angle, and I panicked a little afterwards which led to repeating the mistake multiple times. I am posting this to warn others to be careful, or replace the torx screws with hex ones -- torx, in my experience, is extremely easy to strip.

I hope I will be able to extract the screw tomorrow with the screw extractor toolkit.

[jonathanf2]

I received my crank today, and as I was installing the chainrings, I stripped one of the bolts. Honestly, it was my mistake as I was torquing the screws under angle, and I panicked a little afterwards which led to repeating the mistake multiple times. I am posting this to warn others to be careful, or replace the torx screws with hex ones -- torx, in my experience, is extremely easy to strip.

I hope I will be able to extract the screw tomorrow with the screw extractor toolkit.

Yeah, 3 bolt direct mount sucks at times. If if it wasn't for my 3-bolt Magene power meters, I would have preferred a different chainring mount.

[offspring_fan]

I attached a photo highlighting the screw cover. It's slightly smaller than the regular 4 pin DUB tool. The pins on the Cruz crankset is slightly smaller, so I want to surce the tool that can remove the cover.

@jonathanf2 did you get anywhere figuring this out?

[jonathanf2]

@jonathanf2 did you get anywhere figuring this out?

The vendor said just use jaw ring pliers. Make sure to get pliers with a sub 2mm tip to fit properly. I pick these up from Amazon US:

https://www.amazon.com/dp/B0FMXJGDDD

[offspring_fan]

And did you replace the lockrings/bolts with DUB ones? Sorry for all the questions.

[jonathanf2]

And did you replace the lockrings/bolts with DUB ones? Sorry for all the questions.

No not yet. I plan on using this crankset on another build, so I don't want to mess with it too much.

[zaphodbeeblebrox]

What chain rings are people running? This crankset looks great, but adding a spider adds a lot of weight. Ends up being not that much lighter then ultegra for much more.

[jonathanf2]

What chain rings are people running? This crankset looks great, but adding a spider adds a lot of weight. Ends up being not that much lighter then ultegra for much more.

Yeah, but does that Ultegra crankset have a power meter attached? 

I'm running Stone chainrings. They look good and shift near or at the same level as Shimano chainrings.

[benquick]

Hi, I have been using this crankset for about 2000km, and I am not sure whether this has been an issue from the beginning or did it come up just in the last ~200km: the drive side has some play, presumably between the carbon crank arm and the part that holds it onto the spindle. I say *presumably* because everything is fully tightened (the crank arm onto the spindle, as well as the chainrings), and only the arm moves -- the chainrings and the non-drive side arm stay in place, so this is an indication that the issue is elsewhere.

A little bit of the movement is present in the lateral direction (but that is perceivable on the non-drive side to a lesser extent as well), and a noticeable amount when I clip on with my shoes and move the crank back and forth in the spinning direction. I might try to record the movement somehow, but it is difficult to capture as I can't hold everything completely still to capture the play.

Anyone else having this issue? Do you think it is dangerous? I will probably message the AliExpress seller anyway in hopes of them recognizing the issue and sending me a new arm.

[jonathanf2]

Hi, I have been using this crankset for about 2000km, and I am not sure whether this has been an issue from the beginning or did it come up just in the last ~200km: the drive side has some play, presumably between the carbon crank arm and the part that holds it onto the spindle. I say *presumably* because everything is fully tightened (the crank arm onto the spindle, as well as the chainrings), and only the arm moves -- the chainrings and the non-drive side arm stay in place, so this is an indication that the issue is elsewhere.

A little bit of the movement is present in the lateral direction (but that is perceivable on the non-drive side to a lesser extent as well), and a noticeable amount when I clip on with my shoes and move the crank back and forth in the spinning direction. I might try to record the movement somehow, but it is difficult to capture as I can't hold everything completely still to capture the play.

Anyone else having this issue? Do you think it is dangerous? I will probably message the AliExpress seller anyway in hopes of them recognizing the issue and sending me a new arm.

Is it possible you might need additional spacers? I use .5mm delrin axle spacers from Wheels Manufacturing to dial in my crankset fit perfectly. Also I'd take off the crankset and check if the alloy mounts inside carbon arms to make sure they haven't de-bonded.