• Welcome to AlpineZone, the largest online community of skiers and snowboarders in the Northeast!

    You may have to REGISTER before you can post. Registering is FREE, gets rid of the majority of advertisements, and lets you participate in giveaways and other AlpineZone events!

bash rings for 2x setups?

Joined
Aug 2, 2006
Messages
617
Points
18
Location
the woods of greater-Waltham
Does anyone know if there are bashrings that let you keep the big chainring in a 2x?
My bike will become an unintended 1x soon if I don't do something to protect the chainring, and I'd prefer a crank mounted ring to a frame mounted guard.
Bike is a 2016 Stumpjumper w/ SRAM 2x10 FWIW.
 

Puck it

Active member
Joined
Oct 26, 2006
Messages
9,591
Points
38
Location
Franconia, NH

bvibert

Moderator
Staff member
Moderator
Joined
Aug 30, 2004
Messages
30,394
Points
38
Location
Torrington, CT
Does anyone know if there are bashrings that let you keep the big chainring in a 2x?
My bike will become an unintended 1x soon if I don't do something to protect the chainring, and I'd prefer a crank mounted ring to a frame mounted guard.
Bike is a 2016 Stumpjumper w/ SRAM 2x10 FWIW.

Some 2x cranks have specific bash guards available, but I'm not sure about the cranks that you have. I think your bike has ISCG tabs (I can't find it specifically called out on the Specialized site, but I know my 2015 does), and if it does you should be able to mount a ISCG style bash behind your cranks. There's two types of ISCG, if you have it I believe it would be ISCG-05. Something like this:





Several companies make similar bash guards, and they come in different sizes depending on chainring sizes

I've never run one personally, but I was looking into one a few months ago when I was switching to 1x and wanted to lose the traditional bash I had. I decided against it since they didn't make one specifically for 30T, and I didn't want to give up the ground clearance on one meant for bigger rings.
 

bvibert

Moderator
Staff member
Moderator
Joined
Aug 30, 2004
Messages
30,394
Points
38
Location
Torrington, CT
Joined
Aug 2, 2006
Messages
617
Points
18
Location
the woods of greater-Waltham
Appreciate the replies. My LBS tells me I could do a guard like the one in bvibert's pics but they weren't aware of anything crank-mounted.

I'll admit to having little knowledge of how bikes are actually assembled (they had to show me how to remove through-axle wheels when I bought the bike :) ) so I won't ask all sorts of 'why can't you just...." questions.

What puzzles me is there's this picture on SRAM's website:
https://www.sram.com/sram/mountain/2x10/gear-range
And one of the bullets states "The 36-22 and 38-24 chainring are available with an all mountain guard option."
Which sounds like what I want, but I can't find any more info.
 

bvibert

Moderator
Staff member
Moderator
Joined
Aug 30, 2004
Messages
30,394
Points
38
Location
Torrington, CT
Appreciate the replies. My LBS tells me I could do a guard like the one in bvibert's pics but they weren't aware of anything crank-mounted.

I'll admit to having little knowledge of how bikes are actually assembled (they had to show me how to remove through-axle wheels when I bought the bike :) ) so I won't ask all sorts of 'why can't you just...." questions.

What puzzles me is there's this picture on SRAM's website:
https://www.sram.com/sram/mountain/2x10/gear-range
And one of the bullets states "The 36-22 and 38-24 chainring are available with an all mountain guard option."
Which sounds like what I want, but I can't find any more info.

That would be great, if it's an option. I did some searching around and couldn't come up with much myself, including no apparent match in their spare parts catalog.

Personally I'd just go with the chain guide style ISCG mount bash guard and call it good. Added bonus is less rotating weight.
 

bvibert

Moderator
Staff member
Moderator
Joined
Aug 30, 2004
Messages
30,394
Points
38
Location
Torrington, CT
I give up. Went to the LBS last night and asked them to show me whatever they have.
They're installing one of these guards, I forget which:

http://www.pricepoint.com/Brand/MRP/MRP-XCG-Bashguard.axd
or
http://www.pricepoint.com/Brand/MRP/MRP-XCg-V2-Bashguard-Black-ISCG-05-36T.axd

1st one might be the same thing Puck It bought.
I'll post pics when I get the bike back.

I think you'll be happy with either.

I started considering one again, since the BB on my new bike is a little lower. My problem remains the same though, I can't find anything specifically for the 30T ring. I don't really want to give up any more ground clearance than I need to.
 

Puck it

Active member
Joined
Oct 26, 2006
Messages
9,591
Points
38
Location
Franconia, NH
I went to mount mine. No hardware was in the box. For $20, what do you expect. I need to dig up some SS hardware now. I also need the Shimano crank tool, it will be here Wednesday. I also may cut off the chain guide as I don't think I will need it.
 
Joined
Aug 2, 2006
Messages
617
Points
18
Location
the woods of greater-Waltham
bump. I broke my bashguard. Well, not not the bashguard itself but one of the mounting bolts. The head of the lower front mounting bolt is gone but the shaft is still inside the threadhole in the frame. And the slot in the main plate of the bashguard is mis-aligned from the remnant of the headless bolt by ~1/16 inch. I must have hit something *really* hard causing the bashguard plate to shear off the bolt head and shift the plate a bit.

I'm glad the bolt sheared instead of sending even more impact to the frame. But holy shit, this is exactly why I wanted a crank mounted bash ring in the first place! ;-)

Bike's at the shop now; they tell me this is rare but not the first time they've seen it happen. Maybe I'll get a new bike if they booger up the frame trying to extract the bolt.
 

bvibert

Moderator
Staff member
Moderator
Joined
Aug 30, 2004
Messages
30,394
Points
38
Location
Torrington, CT
bump. I broke my bashguard. Well, not not the bashguard itself but one of the mounting bolts. The head of the lower front mounting bolt is gone but the shaft is still inside the threadhole in the frame. And the slot in the main plate of the bashguard is mis-aligned from the remnant of the headless bolt by ~1/16 inch. I must have hit something *really* hard causing the bashguard plate to shear off the bolt head and shift the plate a bit.

I'm glad the bolt sheared instead of sending even more impact to the frame. But holy shit, this is exactly why I wanted a crank mounted bash ring in the first place! ;-)

Bike's at the shop now; they tell me this is rare but not the first time they've seen it happen. Maybe I'll get a new bike if they booger up the frame trying to extract the bolt.

Wow, that's crazy! I wouldn't have expected that to happen.
 
Top