Trouble Finding Sprocket Guards

[Hoggdoc]

Some time ago I changed the front sprocket on my Himiway Cruiser to a 52 tooth. This seems to be a common mod these days. My issue I have looked everywhere and have been unable to find a guard for the larger sprocket. I believe this is because the 104BCD bolt spacing is typically only used on mountain e bikes and they use much smaller (less teeth) on the drive sprockets.

I think this maybe a opportunity for someone with 3D printing and CAD knowledge to make a small cottage industry providing these guards. Unfortunately I possess neither of these talents.

So the question is does anyone on the forum know of such a person or have they found a source for guards for the larger sprockets.

 

[HumanPerson]

Heya doc how've ya been?

Would anything in here work?

Chainring Guard 52t, Bcd 130mm, 120g for sale | eBay

Get the best deals for Chainring Guard 52t, Bcd 130mm, 120g at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!

www.ebay.com

 

["A"]

Maybe find a fitting here?
10.5 or 10.6 for 52T chainring available.

https://www.aliexpress.us/item/3256804747502819.html

 

[HumanPerson]

Can't hurt to look here,

https://www.amazon.com/s?k=Chainring+Guard+52t%2C+Bcd+130mm&ref=nb_sb_noss

 

[Hoggdoc]

Heya doc how've ya been?

Would anything in here work?

Chainring Guard 52t, Bcd 130mm, 120g for sale | eBay

Get the best deals for Chainring Guard 52t, Bcd 130mm, 120g at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!

www.ebay.com

No all of those are for the more popular 5 bolt pattern used on bikes with larger sprockets. Thanks for the link.

 

[Hoggdoc]

Can't hurt to look here,

https://www.amazon.com/s?k=Chainring+Guard+52t%2C+Bcd+130mm&ref=nb_sb_noss

I have and all the larger ones have 5 bolt patterns.

 

[hsdrggr]

Yeah, there’s not much out there for 104bcd chain ring guards. That’s why on any e-bike that I decide to change chainring tooth count I just purchase these 130BCD cranksets. They are very inexpensive and all of the chainrings for them have integrated guards. If in the rare situation that you want a double chainring you can always add a normal 130bcd inner ring to them with longer chainring bolts. One of my e-bikes is running a 38/47t double configuration with this crank set. I have used several of these cranksets and they look and perform well. I’m not sure if the chainrings themselves are hardened or not. The cranks are 6061. I did drop a chain once when shifting and jumping off a curb and it bend a couple chainring teeth, but I was able to bend them back straight without cracking and am still using it today.
This is a pic before I added the inner ring.

 

[Hoggdoc]

Yeah, there’s not much out there for 104bcd chain ring guards. That’s why on any e-bike that I decide to change chainring tooth count I just purchase these 130BCD cranksets. They are very inexpensive and all of the chainrings for them have integrated guards. If in the rare situation that you want a double chainring you can always add a normal 130bcd inner ring to them with longer chainring bolts. One of my e-bikes is running a 38/47t double configuration with this crank set. I have used several of these cranksets and they look and perform well. I’m not sure if the chainrings themselves are hardened or not. The cranks are 6061. I did drop a chain once when shifting and jumping off a curb and it bend a couple chainring teeth, but I was able to bend them back straight without cracking and am still using it today.
This is a pic before I added the inner ring.
View attachment 9804

I hear you idea is a the better way, but I wanted to test the change before spending a lot of $. It has worked well except for losing the sprocket guard. That hasn't seemed to be much of an issue at this point and I like the look of my new red 52 tooth sprocket.