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  1. #1
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    ... and if we just ... Chainring protection options for 1x 104BCD

    Hi all,

    I am about convert my Chili from a 1x10 system with full chainguide (upper, lower and taco protection) to a 1x11 speed with narrow-wide chainring (30T or 32T) and clutch derailleur. Note that the cranks will remain the same, i.e. 104BCD. This change will make the full chainguides redundant and I am now looking at the best options to protect the chainring, without any having upper or lower chain guides.

    I see two possibilities: either a bashguard (that attaches to the crank), or a taco-style protection (that attaches to the ISCG tabs). I am riding a Chili for a reason and the protection should be at least all-mountain level.

    In my mind, the ISCG taco solution is the most elegant because it protects the area that needs protection and no more, contrary to bashguards, which cover the entirety of the chainring (but no shocks are expected from the top, right?). On the Chili, there is however, some sort of ISCG plate (visible here), which could possibly make the ISCG taco solution heavier... Any idea how much this ISCG plate weighs? (answer: 33.6 g) Also, a disadvantage of the bashring option is that I would need to change the bashguard if I were to use cranks that use another standard than 104 BCD.

    Some taco options:
    • MRP XCG: 99g. It looks nice but, its smallest size appear to be in the 34T-36T max. Perhaps more importantly, it is a Cross Country Guard (XCG), and may not be tough enough?
    • BlackSpire Bruiser: 76g. There is a 32T max option and it is rated for XC/AM. Looks promising!


    There seem to be quite a few bashguard options. To cite a few, e.g. in aluminum:
    • Chromag: 105g, 35T, 104 BCD, 7075 aluminum. Should be quite strong due to the use of 7075 alloy.
    • Race Face Lightweight Bash: 50g, 32T, 104BCD, 7075 aluminum. Rated for DH/FR. Sounds almost too good to be true!
    • Straitline Bashguard: 94g, 32-34T, 104 BCD, 6061 T6 aluminum. Nice serrated look.

    ... or in plastic:
    • e13 Turbocharger: <87g, 32T, 104 BCD, impact absorbing full thermoplastic. The "lightest and strongest bashguard", no less!
    • Gamut P20: 76g, 32-34T, 104 BCD, shock-absorbing plastic.
    • Gamut P20S: 70g, 32-34T, 104BCD, shock-absorbing plastic. This is the evolution of the P20, with stronger crank bolt hole support and integrated aluminum inserts. The products from the S-line series are used by downhill racers and seem plenty strong.


    So, what would you recommend, bashguard or taco? Any experience with the models mentioned here? Any other models you recommend?
    Last edited by F-Bomb; 03-04-2014 at 07:16 PM. Reason: Weight

  2. #2
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    I have been riding with the AMG for a while. The guide works as adverstised but be sure to follow the chain lube restrictions. Mountain Racing Products home of MRP, White Brothers, Kreitler, Tamer, and Power Grips | LUBE AND DEGREASER COMPATIBILITY

    I have the Bruiser waiting for me at the bike shop. I plan to install that tonight on my Endo and give it a proper thrashing this weekend.

    My buddy is riding with the Race Face bash and this: wiggle.com | Hope Chain Guide - ISCG 05 Mount | Chain Guides & Bash Guards . If (when) I destroy another MRP guide I will be going that route for my Chil
    "Mi amor Nuevo Miércoles!"

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  3. #3
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    Quote Originally Posted by Calhoun View Post
    I have been riding with the AMG for a while. The guide works as adverstised but be sure to follow the chain lube restrictions. Mountain Racing Products home of MRP, White Brothers, Kreitler, Tamer, and Power Grips | LUBE AND DEGREASER COMPATIBILITY



    I have the Bruiser waiting for me at the bike shop. I plan to install that tonight on my Endo and give it a proper thrashing this weekend.

    My buddy is riding with the Race Face bash and this: wiggle.com | Hope Chain Guide - ISCG 05 Mount | Chain Guides & Bash Guards . If (when) I destroy another MRP guide I will be going that route for my Chil
    Sh!t!
    It says WD40 is not good. That's all I use to lube my chain.

  4. #4
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    Quote Originally Posted by F.N.G View Post
    Sh!t!
    It says WD40 is not good. That's all I use to lube my chain.
    You need to go back to using hairspray
    "Mi amor Nuevo Miércoles!"

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  5. #5
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    I use a wolftooth ring along with their integrated bash guard on my setup




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    What cranks are you running? I ended up going with a MRP AMg because options were very limited for XT M785 cranks I've got even though they're 104BCD. I also didn't like how the smallest XCG was for 36T, you could always remove the top guide from the AMg.

  7. #7
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    Thanks for the reference to the Chromag bash guard F-Bomb. That goes on my parts list for my new Endorphin build.
    http://kevinboyer.zenfolio.com/

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  8. #8
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    My 2 cents about bash guards, whether taco or full ring guard.

    The e13 turbo was pretty sweet in that it would slide over rocks quite nicely. The MRP 2x taco does things in a similar way. The alu rings (chromag and RF both look very nice) will not slide over the rocks as much, so if rolling something big enough that you probably should have dropped, it's going to steal more of your momentum at a time when you already have things moving forward.

    The downside to the plastic might be issues with your preferred chain lube. I had to switch with my e13 turbo. The taco mount has the possibility of slipping if hit fairly hard and may rotate on the ISCG tab causing rear swing arm contact. So far it hasn't been an issue on my MRP 2x, but I did have to rotate it down a bit after an impact that left it nearly touching the chainstay. I guess the last thing is that front chainring cleaning is much easier with a taco then a full bash.

    I doubt my ramblings will sway you one way or the other, but some might be more significant than others depending on your use and preferences.

    BL
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  9. #9
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    I had an MRP 2x when i had a 2x9 set up. When i went to a 1x10 setup with a RF 30 tooth narrow wide, i took the dremel to the guide part of the 2x and use whats left as a taco bash. Works great. If you have carbon cranks i would not use a regular bashguard.

  10. #10
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    Quote Originally Posted by Calhoun
    I have been riding with the AMG for a while. [...]
    My buddy is riding with the Race Face bash and this [Hope top chain guide]
    Thanks Calhoun. I suppose my goal is to avoid top guide or bottom guides since narrow-wide chain rings and clutch derailleurs appear effective at retaining the chain. The taco of the MRP AMG seems very similar to that of of XCG...

    Quote Originally Posted by Calhoun
    I have the Bruiser waiting for me at the bike shop. I plan to install that tonight on my Endo and give it a proper thrashing this weekend.
    So, how did it the Blackspire Bruiser go?

    Quote Originally Posted by 006_007
    I use a wolftooth ring along with their integrated bash guard on my setup.
    Thanks 006_007, I have seen this bash guard before, but the statement of the manufacturer leaves me to wonder how durable this one is:
    "These are designed for XC, trail and enduro riding. They are not meant for downhill use where heavy impacts are expected."
    What's your take on this? Does the bashguard take some abuse?
    Also, I do not have SRAM direct mount cranks. So, that takes this model out of the equation for me.

    Quote Originally Posted by BikeLust
    The e13 turbo was pretty sweet in that it would slide over rocks quite nicely. The MRP 2x taco does things in a similar way. The alu rings (chromag and RF both look very nice) will not slide over the rocks as much [...] The downside to the plastic might be issues with your preferred chain lube. [...] the last thing is that front chainring cleaning is much easier with a taco then a full bash.

    I doubt my ramblings will sway you one way or the other
    I appreciate your ramblings BikeLust. It's good to know that plastic will slide better than aluminum.

    Quote Originally Posted by harry timbercrank
    When i went to a 1x10 setup with a RF 30 tooth narrow wide, i took the dremel to the guide part of the 2x and use whats left as a taco bash.
    Lol, you are right, Timbercrank, using a Dremel to cut the guides is a possible option for me, though it would sadden me a little to modify the guard in such an irreversible way.

    Quote Originally Posted by mayonays
    What cranks are you running? I ended up going with a MRP AMg because options were very limited for XT M785 cranks I've got even though they're 104BCD.
    Thanks for the info. I do have Shimano Deore XT cranks, though I do not know which model exactly. What exactly is the compatibility issue you are talking about, mayonays?

  11. #11
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    More interesting bashguard models:



    I am currently thinking that a bash guard is a better solution for me, since it would protect the chain and ring in case the bike falls on the ground, or protect the rider in case the rider falls on the bike
    Last edited by F-Bomb; 02-24-2014 at 12:57 AM.

  12. #12
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    2013 Medium Santa Cruz Blur Trc in Matte/Silver, full XT kit, 1x10 with 32T wolftooth ring, 25 pounds 7 ounces

  13. #13
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    Quote Originally Posted by F-Bomb View Post
    Thanks for the info. I do have Shimano Deore XT cranks, though I do not know which model exactly. What exactly is the compatibility issue you are talking about, mayonays?
    Shimano XT M785 bashguard It's an issue with the XT double crankset. Not sure if it's just that one, but worth checking out.

  14. #14
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    Quote Originally Posted by F-Bomb View Post
    Thanks Calhoun. I suppose my goal is to avoid top guide or bottom guides since narrow-wide chain rings and clutch derailleurs appear effective at retaining the chain. The taco of the MRP AMG seems very similar to that of of XCG...


    So, how did it the Blackspire Bruiser go?
    I got lazy this weekend and wanted to ride instead of work on my bikes. Didn't get it installed until yesterday, but I did get out for a quick ride with the dog to test it out. Never noticed it, so it works well so far.







    The AMG was on my Chili and I needed to buy another guard. The Bruiser came in about $20 cheaper than the AMG so I thought I would give it a shot.
    "Mi amor Nuevo Miércoles!"

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  15. #15
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    Quote Originally Posted by Calhoun View Post
    I got lazy this weekend and wanted to ride instead of work on my bikes. Didn't get it installed until yesterday, but I did get out for a quick ride with the dog to test it out. Never noticed it, so it works well so far.







    The AMG was on my Chili and I needed to buy another guard. The Bruiser came in about $20 cheaper than the AMG so I thought I would give it a shot.
    That is a nice looking option.
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  16. #16
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    Quote Originally Posted by mayonays View Post
    Shimano XT M785 bashguard It's an issue with the XT double crankset. Not sure if it's just that one, but worth checking out.
    Thanks for the link, mayonas. I checked and I have the M770 cranks.

    Quote Originally Posted by Calhoun
    The AMG was on my Chili and I needed to buy another guard. The Bruiser came in about $20 cheaper than the AMG so I thought I would give it a shot.
    Looks nice, indeed.

    I found this other interesting plastic bashguard:
    • Gamut P20S: 70g, 32-34T, 104BCD, shock-absorbing plastic. This is the evolution of the P20, with stronger crank bolt hole support and integrated aluminum inserts.

  17. #17
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    Quote Originally Posted by F-Bomb View Post
    Hi all,

    I am about convert my Chili from a 1x10 system with full chainguide (upper, lower and taco protection) to a 1x11 speed with narrow-wide chainring (30T or 32T) and clutch derailleur. Note that the cranks will remain the same, i.e. 104BCD. This change will make the full chainguides redundant and I am now looking at the best options to protect the chainring, without any having upper or lower chain guides.

    Any other models you recommend?


    I just got a couple of the BS Bruisers for our bikes and they look very well made, strong and light.

    Made in Canada as well which I like.
    Safe riding,

    Vik
    www.vikapproved.com

  18. #18
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    Quote Originally Posted by Calhoun View Post
    I got lazy this weekend and wanted to ride instead of work on my bikes. Didn't get it installed until yesterday, but I did get out for a quick ride with the dog to test it out. Never noticed it, so it works well so far.







    The AMG was on my Chili and I needed to buy another guard. The Bruiser came in about $20 cheaper than the AMG so I thought I would give it a shot.

    info on the black chain? thought coloured chains were only for single speed trains

  19. #19
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    Quote Originally Posted by leexy View Post
    info on the black chain? thought coloured chains were only for single speed trains
    Connex by Wippermann

    I snagged it on Chainlove for cheap and now I know why. Rarely have I broken a chain but I have broken this one 3 times. Not worth the money, putting a SRAM on this morning.
    "Mi amor Nuevo Miércoles!"

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  20. #20
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    Thanks for everyone's advice. My decision was to go with a plastic bashguard, the Gamut P20S. It is difficult to find at the moment, or costly, and so, I ordered the the Race Face Lightweight Bash (aluminum).

  21. #21
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    Quote Originally Posted by Calhoun View Post
    Connex by Wippermann

    I snagged it on Chainlove for cheap and now I know why. Rarely have I broken a chain but I have broken this one 3 times. Not worth the money, putting a SRAM on this morning.
    I waited too long:

    "Mi amor Nuevo Miércoles!"

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  22. #22
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    Damn. That really sucks.
    If jackasses could fly this place would be an airport.

  23. #23
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    Quote Originally Posted by rscecil007 View Post
    Damn. That really sucks.
    ^^^ Ditto that ^^^
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  24. #24
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    Oh snap!

    Short cage RD?

  25. #25
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    Yup

    A short lived, short cage. About 3 weeks worth of riding. Luckily I had a spare and a new chain so I was back out riding in about an hour.
    "Mi amor Nuevo Miércoles!"

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  26. #26
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    Quote Originally Posted by rscecil007 View Post
    Damn. That really sucks.
    Forgot to mention the chain was so far behind the cassette I had to remove the cassette to get it out.
    "Mi amor Nuevo Miércoles!"

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  27. #27
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    Quote Originally Posted by Calhoun View Post
    Connex by Wippermann

    I snagged it on Chainlove for cheap and now I know why. Rarely have I broken a chain but I have broken this one 3 times. Not worth the money, putting a SRAM on this morning.
    That sucks!

    Apparently it's Wippermann's quality and not an isolated incident. Statement on the Wolf Tooth Component's gxp direct mount chainring page:

    Use a 10 or 11 speed chain. The only brand of chain we don't recommend is Wippermann.
    "sounds like you need to find a better mechanic..." -- Calhoun

  28. #28
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    Ouch...

    I have no experience with the Wippermann chains, but their quick link is brilliant: easier to put on and take off than that of other brands, but also more reliable in my experience.

  29. #29
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    I weighted the ISCG tabs and screws yesterday. They come up at 33.6 g in total, 22.6 g for the tabs and 11.0 g for the screws.

    I have just removed my Hammerschmidt to install X01. I have thus removed these ISCG tabs, but I wonder if I should leave the screws attached to the bike. Is there any risk of water entering the frame, or maybe simply a risk of rust?
    Attached Images Attached Images  

  30. #30
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    I can't see how it would cause and aluminum frame to rust. I don't remember if the bolts went in all the way, but why not just leave them in? I mean, a Cliff bar is 64g, I doubt you are going to notice the weight loss.
    Last edited by BikeLust; 03-05-2014 at 09:52 AM.
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  31. #31
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    Quote Originally Posted by F-Bomb View Post
    I weighted the ISCG tabs and screws yesterday. They come up at 33.6 g in total, 22.6 g for the tabs and 11.0 g for the screws.

    I have just removed my Hammerschmidt to install X01. I have thus removed these ISCG tabs, but I wonder if I should leave the screws attached to the bike. Is there any risk of water entering the frame, or maybe simply a risk of rust?
    That Hammershmidt weighed about 1600g so I doubt you'll notice 11g worth of screws. The only problem with leaving them out would be trying to thread them back in if you need them in the future. Not impossible but it would take a good cleaning.
    "Mi amor Nuevo Miércoles!"

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  32. #32
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    It doesn't look like the chain is broken in that pic? Did it break and the tension release caused the damage, or was the chain just mis-shifting and went off the large cog into the spokes?
    Quote Originally Posted by Calhoun View Post
    I waited too long:

    "Lightweight , durable , inexpensive
    Pick 2."

  33. #33
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    BikeLust & Calhoun > Of course, I will not notice a 34 g difference, but if it's not needed, it has no place on the bike, imo. In contrast, that Granola bar has a very practical use... in my stomach.

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    Best chainring protection for 1x11





    I have a blackspire bruiser on my Race face narrow wide 32T chain ring of my Enduro evo expert. I love how it is hidden behind the chain ring.

  35. #35
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    Nice. You do not get much closer than that. I didn't even see it at first!

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    Guys, any opinion or experience on whether or not a bashring will help with chain retention?

    I have ridden three weeks with my X01 setup (regular 32T chainring, no chain guides, no bashring or taco) without problem. But yesterday, my chain came off five times. I will receive a Race Face narrow-wide chainring and bashring soon. Hopefully, that will help.

  37. #37
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    Quote Originally Posted by F-Bomb View Post
    Guys, any opinion or experience on whether or not a bashring will help with chain retention?
    If your chain is falling off to the outside yes it will help. If it's falling off to the inside no it won't.

    I've been running a clutch derailleur and a normal single ring with a bash ring. I have only lost it twice while riding and it's because my chainline wants to pull the chain off to the inside when climbing. Still it's pretty darn reliable just with the normal ring and bash.

    I've got a NW ring on now. I expect I won't drop a chain again.
    Safe riding,

    Vik
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    Cheers! Well, I expect that this would be a big argument in favor of a bashring, compared to a taco guard.

  39. #39
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    Quote Originally Posted by F-Bomb View Post
    Cheers! Well, I expect that this would be a big argument in favor of a bashring, compared to a taco guard.
    I had a taco guard on before that had an upper chain guide so that was 100% secure, but ya if you only have some protection at the bottom it won't help with chain retention.
    Safe riding,

    Vik
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  40. #40
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    I am running the Hope IBG mated with a Gamut outer ring.

    The Hope is not a NW, and I don't have a clutch RD at the moment (standard STX). I have not lost a chain yet, even with all the rain and muck lately in the PNW.

    However, we don't have the chunk that Utah and AZ have.
    Attached Thumbnails Attached Thumbnails Best chainring protection for 1x11-chainring-007.jpg  

    Regional Race Manager, Knolly Bikes
    Washington, Montana, Idaho, South Africa

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    I just ordered the Wolf Tooth combo, hopefully I'll be able to give some feedback on it by this weekend.

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    Re: Best chainring protection for 1x11

    Quote Originally Posted by vikb View Post
    If your chain is falling off to the outside yes it will help. If it's falling off to the inside no it won't.

    I've been running a clutch derailleur and a normal single ring with a bash ring. I have only lost it twice while riding and it's because my chainline wants to pull the chain off to the inside when climbing. Still it's pretty darn reliable just with the normal ring and bash.

    I've got a NW ring on now. I expect I won't drop a chain again.
    I have now been on the RaceFace bashguard for some time. I had a weird moment with the chain once, but otherwise never lost the chain. I am a happy camper.

  43. #43
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    Mrp amg

  44. #44
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    I went to a 1 x 10 setup on my Chili this year (30 tooth rf narrow wide). The ring is so small that I find I don't really need a chain guide. The teeth are fine after a summer of hard riding. Also, I have never dropped a chain since putting on the new drive train.

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