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Old 03-25-14, 10:48 PM   #1
unclejemima
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Rear Rack on a disc brake bike...

I'm getting confused. I want to mount a rear rack to my bike but I see some racks are advertised as "disc brake mount".

My bike has rear disc brake...do I choose a rack model that says "disc brake mount" or does that mean the rack uses the disc brake mounts, so I won't be able to use my disc and the rear rack...????

Confused!

I'm wanting this one...

Ibera Bike Pakrak Touring Carrier Rack Plus Cycling Rear Storage Holder New RA4 | eBay

or this one might be a safer choice...

Alloy MTB Bicycle Rear Rack Bike Bag Pannier Compatible with Disc Mount Brake | eBay
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Old 03-25-14, 11:23 PM   #2
alaskanb3arcub
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The reason the rack is labeled disc mount is because it is designed to go on a disk fork, which has a different spread from V or caliper brakes. I seriously doubt the rack will go through a disc brake mount, but I haven't installed one in a while.
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Old 03-25-14, 11:35 PM   #3
J.C. Koto
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You want something disc-brake compatible. If it says "disc brake mount" it means it's compatible with a disc brake bike. If the rack doesn't mention it's disc brake compatible you can probably still use it but it might take some ingenuity (and a lot of frustration) to rig it up to work well, so it's probably better to get something that specifically mentions disc brake compatibility.

edit: TBH, neither of those racks look particularly good, IMO, but I will defer to someone who has either.

Last edited by J.C. Koto; 03-25-14 at 11:41 PM.
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Old 03-26-14, 12:46 AM   #4
yote223
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I just put one of these on my new TREK 3500 Disk. Works great. They have them on sale right now.

TransIt TD-1 Rack - Bike Racks
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Old 03-26-14, 01:32 AM   #5
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disk brakes usually get in the way of traditional rack mounts. so 'disk racks' typically have legs that arch out to clear the brake . some touring intended bikes may get clever with frame design to allow normal rack compatibility , lookup Surly Troll

Last edited by xenologer; 03-26-14 at 01:45 AM.
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Old 03-26-14, 05:47 PM   #6
dynaryder
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Quote:
Originally Posted by alaskanb3arcub View Post
The reason the rack is labeled disc mount is because it is designed to go on a disk fork, which has a different spread from V or caliper brakes.
wrong

Quote:
Originally Posted by xenologer View Post
disk brakes usually get in the way of traditional rack mounts. so 'disk racks' typically have legs that arch out to clear the brake .
correct

unclejemima: what bike do you have? Many bikes have their rear caliper mounted on the seatstay like this:


Because the caliper sticks out,you usually need a disc-specific rack that will mount around it. Note,many hydraulic calipers tuck in far enough to clear a rack.

Nowadays,many bikes come with the caliper mounted to the chainstay like this:


On these,the caliper is out of the way and standard racks will work.

Here's some links to some companies that make disc-specific(and standard) racks:
Topeak® Cycling Accessories ? Products - Racks
Racks « Products « Axiom Performance Gear
Racks
Attached Images
File Type: jpg seatstay.jpg (51.6 KB, 12 views)
File Type: jpg chainstay.jpg (71.1 KB, 11 views)
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