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Commuting Bicycle commuting is easier than you think, before you know it, you'll be hooked. Learn the tips, hints, equipment, safety requirements for safely riding your bike to work.

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Old 03-19-12, 10:25 AM   #1
steve-in-kville 
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Rear rack for MTB with disc brakes?

Can anyone recommend one? I would prefer something on the sturdy side, not something cheap.

Thanks!!
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Old 03-19-12, 11:59 AM   #2
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Can anyone recommend one? I would prefer something on the sturdy side, not something cheap.

Thanks!!
Topeak makes a rear rack for bikes with disk brakes. Fits very well over my Alfine hydraulic disks. It's also quite sturdy.
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Old 03-19-12, 12:19 PM   #3
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Take a look at Old Man Mountain. I have their Red Rock on my tandem ( with rear disc ) and love it. Very well made. Their customer service is great also.

http://www.oldmanmountain.com/
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Old 03-19-12, 12:30 PM   #4
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After I started this thread I found a Topeak rack that mounts to the seat post. Has a weight limit of 15 pounds which sounds about right. Has anyone used this before?
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Old 03-19-12, 12:36 PM   #5
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I started out with a seatpost rack, and absolutely hated it. The weight is too high, the rack is hard to secure, and you can't carry much weight. I was happy the day it broke and didn't damage me or the bike in the process.

The Topeak rack is great for commuting, especially when combined with a Topeak bag designed to slide on and off. Excellent durability and easy to install with disc brakes. You need to get the disc-specific model.

Recently purchased OMM Sherpa racks for touring, and they are very rugged, but probably more than you need for commuting, and more expensive.
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Old 03-19-12, 12:44 PM   #6
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how are uoi intending to mouunt it?
Delta has a 2 strut one.. struts are shorter.. P clamp up the seat stays.

Seat post racks are a common workaround for FS mountain bikes..
Spaniel Ear rack bags and beam racks with some side support loops on them,
will allow expansion space.

the alternate if you have a hard tail, is adding stand off spacers
on the left lower mount,
and making the rack splay wider, to clear the disc caliper,
for symmetry, the same may be done to the right side ..
Calhouns cycle shop in MN offers hex standoffs with a stud in one end.
your rack bolt goes in the other end..

a longer bolt and tube spacer may do OK, Perhaps upgrade
to 8.8 marked bolts then, for their higher strength steel.

Last edited by fietsbob; 03-31-12 at 10:06 AM.
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Old 03-19-12, 01:04 PM   #7
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At the LBS I flexed some non disc aluminum racks to the width they would need to be in order to clear discs and it just felt like a little bit too much stress to put on the racks.

I just bought a Planet Bike Versa Rack that is supposed to work well with dics. Unfortuantely I am still waiting for it to arrive. I leaned away from the Topeak stuff since it is set up to accept Topeak bags. Of course you don't have to buy a Topeak bag, but looking at that part of the rack every day would kind of bother me. Just look around at some online bike stores and I'm sure you'll find plenty of options.

Last edited by biknbrian; 03-19-12 at 01:08 PM.
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Old 03-19-12, 04:57 PM   #8
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Seatpost racks are pain in the neck, they won't hold more than few pounds without eventually swinging sideways. Get the Topeak Super Tourist DX Disc rack, it works great. Assuming, you have a hardtail MTB, not a full suspension bike.
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Old 03-19-12, 05:51 PM   #9
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Mine is a hardtail. I've ruled out the seat post mounted racks. Do it right or not at all.
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Old 03-19-12, 05:57 PM   #10
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I'll also throw my hat in the ring for the Topeak rear rack. They make a very sturdy one with stanchions that are spread a little wider than a standard rack in order to clear the disk brake mechanism. At the bottom of the stanchion there are short bosses or lugs to mount the rack to the rear triangle dropout. You'll have to have a bike that has mounting holes for a rack drilled in the dropout or I don't think it can be adapted. I have a Specialized 29'r mountain bike and it works great.
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Old 03-19-12, 07:03 PM   #11
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I've got a Topeak, and I'm content with it. It's got the little track that allows me to attach a quick-release bag to it. So I can carry the weight on a rear rack, and then quickly release the bag when I get to work and carry it inside. The Topeak isn't as elegant at a Tubus, but it is cheap and it gets the job done.
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Old 03-31-12, 07:30 AM   #12
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This bike will be used for some commuting, some recreational rides as well as for the search & rescue bike team I volunteer with. I will check out the Topeak racks.

Thanks for the replies!!
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Old 03-31-12, 08:33 AM   #13
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With some creative use of spacers -- Jandd makes bolt on units, or you could use a really long bolt plus some spare front brake mount nuts -- most any rack can be made to fit. I'd definitely respect max load capacity at that point...
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Old 03-31-12, 09:55 AM   #14
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I don't like spacers: weak point. Get a rack that is designed for disc brakes. I have Topeak racks on two bikes. I toured for two weeks with one and I commute daily for several years now, run errands, shopping, etc.
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Old 03-31-12, 09:58 AM   #15
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Old Man Mountain. I've been running one since '07, and it's still the best rack ever. I use a Sherpa rack on a cross bike with disc brakes.
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Old 03-31-12, 10:19 AM   #16
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Topeak makes a rear rack for bikes with disk brakes. Fits very well over my Alfine hydraulic disks. It's also quite sturdy.
I second this. The Topeak Explorer Disc is a very good rack. I have one on my mountain bike - very sturdy and the MTX track system works well. I think it was around $40.
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Old 03-31-12, 05:46 PM   #17
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Topeak makes a rear rack for bikes with disk brakes. Fits very well over my Alfine hydraulic disks. It's also quite sturdy.
I have a Topeak for my commuter with discs too. Very sturdy.
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Old 03-31-12, 06:30 PM   #18
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My mountain bike rocked the Topeak disc rack. That thing worked great.

I have a seat post mountain Topeak rack as well. I use that on my road bike for long training rides. I don't carry much. Just replaces my seat bag and I can also throw in some extras (bars, sunscreen, phone, wallet, etc) without needing to carry them on my back. I honestly would not use it to carry anything more than the little trunk bag I put on it. That is at the limit for me, and it is maybe 8lbs, maybe.

I also use a bar bag to hold a small mono speaker setup so I can listen to some tunes without blocking out the important noise around me.
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