Update May 21 2020

I have found an available pair of cranks to replace the OEM Luna cranks. The EUL Crank arms. The Monty set I use are impossible to find as of this date. But the EULs will work just as well.

Same offset as the Luna cranks, just a bit longer and black.
The Monty Cranks I use are longer than the OEM Luna crank arms that come with their pedal kit. Monty does make crank arms the same length as the Luna set too.

Due to a little mishap my left pedal crank was bent enough to cause it to foul on the kickstand. I was able to bend it back using a vice and hammer. It motivated me to purchase an alternate set of cranks branded by “Jitsie” sold by the same retailer I used to purchase my Monty cranks. A fellow member on a private Sur Ron group had “successfully” installed a set of Jitsie’s on his bike so I thought they would fit on mine. Not so unfortunately. Either my kickstand or my pedal kit tolerances are different than his. Another user found the same issue with his kickstand and the Jitsie’s. He had to bend his stand inward toward the swingarm until it cleared. I prefer to not do that as a crash on the left side could then cause the stand to foul the swingarm.

The length of the Monty cranks.
Monty cranks easily clear the kickstand. Loads of clearance with the Monty crank.
The Jitsie cranks although less prone to bending do NOT clear my kickstand so I did not use them. The Jitsie crank fouls on my kickstand.

I would prefer the Jitsie’s because they do not have the same bend and material cut away as the Monty’s so I surmise they will not bend as easily under high forces. Keeping the pedal cranks level when bouncing or jumping won’t bend them. But having one pedal lower and then bouncing or landing on the down pedal produces enough force to bend the crank depending on rider weight. Just be aware that the Jitsie brand may not fit your pedal kit. It didn’t work for mine.

Here you can see the material that is removed from the Monty brand. I’m sure it’s to save weight, but I’d rather trade that for strength on the Sur Ron.
The Jitse’s are slightly shorter than the Monty brand.
The bend of the Monty crank is evident.

29 Comments

  1. Do you know of any alternatives to the Monty with equivalent or similar offset. I believe the Monty has a 45mm offset. What would you recommend to be the minimum?

    • Stu I have been very happy with the Monte’s I list in my post. The offset is exactly what is needed to clear the kickstand on the Monte’s.

  2. I can’t find the Monty cranks available online in the US. Went to the site you linked and they don’t have them. Any suggestions on where to find them.

    Thanks

    • I replied to another person’s email about this request. Here you go.

  3. Do you know where I can buy the Monty cranks from.

    • Hi Jeff I just noticed that the retailer I purchased mine from no longer sells them. After doing a short Google search I located a retailer with the Monte Cranks. I’ve changed my two pages where I reference them. Thanks.

  4. How have these heald up under general trail riding?

    • Fine, just keep in mind if your version of trail riding is over very large rocks/roots/etc. you may want to switch to pegs. I keep my pedals level and where/how I ride it’s fine.

  5. Where do you find the Jitsie crank arms?

    • Use my search bar and search for Jitsie. I explain why they didn’t work for me.

    • TOM! You must be monitoring my computer LOL. I JUST ordered a set of those from the exact site you reference. I was waiting for their arrival before posting them as an alternative to the hard to find Monty cranks I use. Thank you!

      • They’re mounted and work well. Now, trying to deal with the stock 48t rear sprocket that seems to be out of round and gives be wonky chain tension, Any thoughts?

        Next project might be looking at alternate spindle/bearing options…

        One thought is https://mbrebel.com/product/7-5inch-sealed-cartridge-bottom-bracket-square-taper-with-keyway-part-20431. I *think* the spindle length is a match, but the bb shell width with the sur-ron (3.5″ / 89mm) is likely too wide and would require it being ground down and threads re-chased.

        Lot’s of other options here: https://mbrebel.com/product-category/bike-motor-parts/wide-bicycle-pedal-crank-sets/

        • Hi Tom, glad to hear the cranks work. Mine arrive Friday and will add them to my site. In terms of the rear sprocket being ‘out of round’ I tend to doubt that. What I found causes an intermittent tension of the chain with the pedal kit is the ratcheting sprocket on the pedal spindle. If you notice the axle (spindel) is notched on the right side with what is suppose to prevent the spindle sprocket from rotating once cinched down. But because the spindle sprocket center is not anywhere close to the tolerances of the spindle when properly aligned with the countershaft and rear sprocket, the opposing 6mm hex screws cause the spindle sprocket to be off center when tightened down. I looked at reversing the spindle, but the tolerances are the same on both sides. I have managed to reduce the off center nature of the sprocket by being very careful to tighten down both set screws as evenly as possible. Even then though I have some uneven tension in the chain. If you want to really check to see if your rear sprocket is out of round, remove the sprocket and spin it to see.

          Seb from Luna Cycle posted a video about aligning the pedal kit sprocket.

          I can appreciate wanting to change the bottom bracket to a sealed bearing set up, but for me it’s just not worth it. Because no pressure is actually placed on the bearing set because I’m not actually pedalling I’m not worried about using a sealed cartridge system. I have ordered the following: Sunlite Sealed Bottom Bracket Cup Set for 3-Piece Cranksets, 68/73mm based on Robert Dutton-Jones comment. It is due to arrive June 5th. And a user on the Amazon link suggested some recommendations installing so I’m going to give those a try too. It all sounds good, but until I try it I cannot say for sure.

          • Hi Mark
            I hope the Sunlite kit I mentioned works as well for you as it is for me. Like a lot of other people I was unable to find the monty cranks anywhere soo I took it as an opportunity to get rid of the kickstand, that looks like some repurposed part off a treadle sewing machine, and bought a set of unicycle cranks https://www.modernbike.com/s?search=Sunlite+Steel+Left+and+Right+Cotterless+Unicycle+Crank+Arms
            They are HEAVY duty as I need that quality, not for pedaling, but for standing up while doing some punishing single track. You have a Great website and I hope you keep it going in spite of the few morons who email you. Cheers, Bob

          • Robert so you installed the Sunlite kit?! Woah great to hear. I’m still awaiting mine to arrive. Are the ends sealed as one Amazon user mentioned? Also I found other crank arms, EUL that I listed here too. No need to remove the kickstand using them as they are the correct offset. I looked at those unicycle cranks last year, but wanted to keep my kickstand.

            And I may just block the IP for those who email me to prevent them from accessing my site. Of course if they use a VPN, well then I will cross that bridge when I get pissed off enough…..

  6. Hey Mark,
    Just wanted to add some information about the pedal kit that you may be interested in. As you may know the pedal kit has been unavailable from Luna for some time. I came across a kit on eBay brand new in the box from a seller in New Mexico. When I received it I was pleasantly surprised to find the stock crank arms are slightly different than the ones shown in your pictures. The crank arms that I received are thicker and seem to be a little better quality. They still have that shitty looking plastic heat shrink wrap and are still silver. Everything else in the kit appears to be the same. Hopefully this is new upgrade for future pedal kits. Feel free to add this info to your website at your discretion. I’d be interested to see if anybody else got a kit with these thicker crank arms.
    Take care,

    John S.

    • Hi John, since you didn’t list the eBay link I did a search and found this set. It appears to be the same one as Sur Ron supplies, but is not from New Mexico instead from Almaty, Kazakhstan. I was unaware that Luna has been out of stock as I don’t visit their site too often these days.

      • Mark,
        The Ebay listing was from a private owner and it only had a picture of the sealed cardboard box.
        I’m so disappointed, I wanted to powder coat the arms black but first had to remove the plastic heat shrink wrap. Well to my surprise it wasn’t heat shrink wrap at all but thick plastic casting with a thin steel crank arm slightly bigger than a pencil buried in the middle. In other words my nice looking crank arms are crap. I’ve searched the internet high and low for a decent replacement but everyone is out of stock. If you or anyone knows where I can get some please let me know. Thanks!

        John S.

        • John using the Search bar on my site for pedal cranks my award you with crank arms in stock. I encourage people to use the site to locate stuff they need rather than just giving them direct links. Teaching a man to fish means he will feed himself for life. And yes those OEM crank arms are covered in some sort of plastic shell. The actual crank arms are spindly in size.

  7. Hello Mark! Greetings from Colombia, South America. I ordered a Sur Ron and received it last week. Superb website you here, thanks for your time and effort, it helped me decide to buy the Light Bee X, and customize it.
    I installed the pedal kit on Thursday and Saturday it cracked by doing some minor jumps, they really are more cosmetic than useful. I just ordered the Monty Kamel 205 from Germany from the link you posted.

    Have you considered allowing this posts to share pictures? This could also help other users..

    Thanks again!

    • Felipe I’m going to assume you broke the crank arm(s) and NOT the pedal kit spindle or tube correct? Based on you wanting to order the Monty cranks that’s how I arrived at that conclusion. I have used my crank arms for years, jumping, landing and such without any cracking.

      I do not to start allowing photos to be uploaded as it would create more work for me to maintain this site. What photos were you hoping to upload?

  8. Hi Mark, yes! sorry for the confusion, the pedal cranks broke, not the spindle or tube. Just wanted to share the picture of the cracked crank.

  9. Hello, I can’t seem to find the peddle arms in stock for US shipping. The ones you have linked are not doing shipping to the US.

    • Yes it seems that pedal cranks often run out and in the past I have done searches to find alternative cranks. I don’t plan to continue searching for them but I’d suggest that when you find some to place a link in the comment section.

      • Ok here’s an update. The trial website that sells the Monty cranks doesn’t have an option to ship to the US from the checkout page, but if you contact the company directly they can make special arrangements to ship to places that are not listed, including the US. I placed the order through email and PayPal them the money. Very professional and very fast response from the company. I want to thank you for the work you do on this website and for this community. You have done a great job and I greatly appreciate your efforts!

        Also, one more question for now, how do you use the search function on your website? I can’t seem to find it and would love to be able to use it so I can be more self sufficient in finding information on your website.

        • Izzy thank you so much for your kind words and for assisting others by explaining how you contacted the Monty crank vendor! For the search all you need to do is use the search bar at the top right of the site page. Unfortunately it does not appear on mobile phones, only tablets and computers.

          • Update #2.( info@trial-world.com ) Here is the email for the company currently shipping Monty 205 Kamel Cranksets as of June 17th. Special arrangements can be made via email to ship outside of the regions that are selectable through the websites checkout page. I paid $71.47 including shipping converted to USD.

            You are most certainly welcome Mark! And it’s my pleasure to be able to contribute some information for the community as well!

            That explains why I could not see the search bar, I was on mobile.

  10. I can’t seem to find a pair of crank arms that are in stock and shipping to the US. The trials bike site you linked is not shipping to the US unfortunately. The zul 140mm crank arms you linked are also out of stock but I found a zul 175mm crank arm set. Do you think these will work and have enough clearance for the kickstand and body?
    https://ebikemarketplace.com/products/zul-crank-arms-175mm-pair


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