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Carbon-Like Chain Case With Spacers

2.17 (6)
It cannot be mounted if there is no hole in the fixing bolt and if the guard already exists in 2piece crank shape like the Shimano Hollowtech II
Bicycle chain cover
Weight (g)
46-48 T crank gear
Carbon steel
(Number of gears) 46 Ding / 48 Ding
Mounting bracket
...see all
Product Options
Ship pack of Mfr.# Item.# Sales Price Availability Qty.
Ship pack of Mfr.# Item.# Sales Price Availability Qty.
1PC 1 SW-720 36721833 -
Customer Reviews
5 star 1
4 star 0
3 star 1
2 star 1
1 star 3
Review Rating: 2.17
6 Customer Reviews
The reviews are automatic translation.
Fitted on 47 cars
From Japan
On 2014-06-10 22:49:33
I bought it for trying to install on 47 chains gear car. However, since it is exactly the same system as the one worn so far, there is no meaning to replace it for the purpose of preventing hem dirt. I also write other people, but wearing can not be done without machining.
This review is about item#36721833.
Bicycle custom
From Japan
On 2013-09-11 22:33:41
I thought whether the outer diameter can be larger a little more. As for installation, it is a remodeled part to the last, although some processing and rubbing, ingenuity is necessary, I was able to install perfectly by using rubber packing separately as I am good at processing job pattern.
This review is about item#36721833.
Prevention of dirt on trousers
From Japan
On 2013-05-13 15:15:44
It does not have the diameter of the screwed part and the main body and can not be screwed as it is. Probably because it prints after making the parts precisely, it seems to be the reason why the thickness of the print can not be screwed. I guess this is all this finish .... As it can not be helped, we scraped the parts with a file and attached it. Also in our case, because we hit the derailleur, we needed to correct the curvature of the body. Products that can not be judged without sticking together until seeing together are difficult ...
This review is about item#36721833.
I put it on my bicycle.
From Japan
On 2013-02-24 10:17:53
Remove the cap of the bicycle crank, put the washer of this product (the lower right in the photo) as the center, insert the screw and the hexagonally attached cap (center top of the photo) as the center and screw in the crank with hexagon to complete installation. However, because there was no gap between the screw and the cap with the hexagon (the center in the center of the photo) and the hole in the center, because of press-fitting, screwing was hard and it was difficult to install straight. Since the part at the lower left of the photo was still too large to install, I discarded it.
This review is about item#36721833.
Home center cross bike repair
From Japan
On 2013-02-24 09:35:57
Hob cap for Hide. Since it protrudes considerably, I adjusted both the cap and the cover. In the 48T gear, since the gear gauge and the case total are the same, it can not be expected for hem dirt prevention.
This review is about item#36721833.
Cover for MTB chain
From Japan
On 2012-07-07 11:42:42
Conforming size is displayed differently by page! It is! I informed you from the inquiry form, but those who are considering purchasing should better check them. Specifically, we selected SW - 720 for 48T. At, it looks like it can be used for 48T, but it looks like 48T not available at Actually, the goods that arrived can not be installed.
This review is about item#36721833.

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