Defective disc
09-20-24 | 11:42 AM
#1
Thread Starter
Senior Member
Joined: Mar 2016
Posts: 1,094
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From: South Italy
Bikes: BMC SLR01; Cannondale Trail; Custom steel gravel.... plus 5 vintage
Defective disc
This little superficial thing is a groove, you need to scratch with nail to feel it.
It is the case to use another disc or i can use whiteout any problem?
i feel like i'm overthinking
It is the case to use another disc or i can use whiteout any problem?
i feel like i'm overthinking
09-20-24 | 12:10 PM
#2
Facts just confuse people
Joined: Jul 2017
Posts: 19,341
Likes: 7,062
From: Mississippi
Bikes: Tarmac Disc Comp Di2 - 2020
Looks like it'll be a problem since it appears to be in the portion for the brake pads to run on. If this is new or used item that you purchased you should get it exchanged or a refund.. If this is a free item, then put them on and see if it gives you a noticeable issue that annoys you.
At worst, it'll just wear your pads sooner and you'll feel a bump forever when you brake. At best you won't notice anything. But if you paid for a rotor, this should go back to the seller.
Those two big areas at the top and the four little areas to the left are pits aren't they?
At worst, it'll just wear your pads sooner and you'll feel a bump forever when you brake. At best you won't notice anything. But if you paid for a rotor, this should go back to the seller.
Those two big areas at the top and the four little areas to the left are pits aren't they?
Last edited by Iride01; 09-20-24 at 12:16 PM.
09-20-24 | 12:30 PM
#3
SE Wis
Joined: Apr 2005
Posts: 11,553
Likes: 4,331
From: Milwaukee, WI
Bikes: '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400, 2013 Novara Randonee, 1990 Trek 970
Looks like casting impurities. Whomever surface ground that should have rejected it. Poor QC
09-20-24 | 01:04 PM
#5
Thread Starter
Senior Member
Joined: Mar 2016
Posts: 1,094
Likes: 173
From: South Italy
Bikes: BMC SLR01; Cannondale Trail; Custom steel gravel.... plus 5 vintage
Looks like it'll be a problem since it appears to be in the portion for the brake pads to run on. If this is new or used item that you purchased you should get it exchanged or a refund.. If this is a free item, then put them on and see if it gives you a noticeable issue that annoys you.
At worst, it'll just wear your pads sooner and you'll feel a bump forever when you brake. At best you won't notice anything. But if you paid for a rotor, this should go back to the seller.
Those two big areas at the top and the four little areas to the left are pits aren't they?
At worst, it'll just wear your pads sooner and you'll feel a bump forever when you brake. At best you won't notice anything. But if you paid for a rotor, this should go back to the seller.
Those two big areas at the top and the four little areas to the left are pits aren't they?
09-20-24 | 06:29 PM
#6
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Joined: Jul 2006
Posts: 11,491
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From: San Jose (Willow Glen) Ca
Bikes: Kirk Custom JK Special, 86 De Rosa Pro, '84 Team Miyata,(dura ace old school) 80?? SR Semi-Pro 600 Arabesque
I was going to say, hope the data backups are current......wrong disc
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09-21-24 | 06:46 AM
#7
Thread Starter
Senior Member
Joined: Mar 2016
Posts: 1,094
Likes: 173
From: South Italy
Bikes: BMC SLR01; Cannondale Trail; Custom steel gravel.... plus 5 vintage
