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Discussion Starter · #1 ·
Okay so as of rite now I have a completely stock Gary Fisher 07 (i believe) and i am going to change my breaks in for some disk breaks. I do about 50/50 on and off trail. My breaks just are not cutting it when my rims build up dirt or if the ground is wet. Im not afraid to go out when the weather isn't great and I ride in low areas near ponds and rivers so need breaks that are going to do fine with lots of exposure to water dirt and muck. I would like to stick to cable over hydraulic unless someone wants to convince me that its worth the effort. My budget is limited so keep that in mind in your suggestions. Also, i'm 165 lb. I am new to mountain biking and self repairs so thanks for your help

Picture of the bike:
https://drive.google.com/file/d/0B-ABEWVHRVK4d1JvT3NKb1p1djg/edit?usp=sharing
 

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Well first off you need to make sure your forks and frame are compatible with disk brakes. Then go from there. You would need new hubs for the rotors, rotors, and a system. If you want to stick with mechanical brakes then the avid bb7s would be the best option. For rotors I would use the airotor. I just got it on eBay for 15$.
 

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Discussion Starter · #3 ·
I updated my post with a link to my bike. I believe it will be compatible with no problem as far as the frame and fork go.
 

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Your bike is no where near compatible for disc brakes. The frame does not have the required mounts for calipers nor does the fork. Your hubs are not compatible to mount rotors, either.
 

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B A N N E D
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It's a 2003 model not a 2007 model.
http://www.bikepedia.com/quickbike/BikeSpecs.aspx?Year=2003&Brand=Gary Fisher&Model=Marlin&Type=bike
http://www.trekbikes.com/us/en/bikes/2003/archive/fisher/Marlin/

Your hubs aren't disc compatible.
You'll either need a new disc compatible wheelset or you'll have to re-lace your current rims onto onto some disc compatible hubs.

The fork is does have PM disc mounts, you can directly attach a PM disc brake caliper onto it.

The frame will need a special adapter, Trek dealers should be able to get you one or you can buy one on ebay.

IS Adapter (a IS to PM adapter will be needed to attach a PM brake)
http://www.ebay.com/itm/Rear-Disc-B...in-Frames-Universal-Mount-Disk-/350999243075?

PM Adapter (a PM brake can be attached directly)
http://www.ebay.com/itm/Rear-Disc-B...n-Frames-160mm-Post-Mount-Disk-/151217503364?

tumblr_m7s8sj016D1qcsksy.jpg

813915d1373146621-need-advice-trek-9-8-disc-brake-mount-img_1431.jpg
 

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Discussion Starter · #7 ·
Okay thanks for the help on the adapters, that shouldnt be too hard and expensive to install. As for actual brakes could i get some recomendations? I looked online a lot a read a lot but there are just so many options that i dont know what would be best for me.
 

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Okay thanks for the help on the adapters, that shouldnt be too hard and expensive to install. As for actual brakes could i get some recomendations? I looked online a lot a read a lot but there are just so many options that i dont know what would be best for me.
I would suggest re-evaluating your situation. Don't forget that you still need to get a new wheel set with compatable hubs, then buy discs, adapters, and brakes. By the time you make this much investment and effort in putting discs and brakes on a bike that wasn't set up for them, you could possibly buy a used bike with what you are looking for without too much cash.
 

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I'm the type of guy that likes customization and upgrades in moderation and generally dont like reading...just get a new bike. In this case you seriously should consider upgrading the bike. Keep that for cruising around town or sell it to aid in getting a used bike. You could get a lower end used bike from 2010ish for pretty cheap that will likely already have disc brakes on it.
 
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