Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  

Go Back   > >

Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

User Tag List

Thread Tools Search this Thread
Old 09-25-05, 07:03 PM   #1
Thread Starter
Join Date: Sep 2005
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
trek 3900

i recently purchased a trek 3900 and didn't custoomize anything
now that i've used it a lot and i've seen other peoples bikes i've been wondering if i can install disc brakes even though the bikes already been assembled
if so does anyone know the price?

p.s. does anyone know how to do a bunnyhop cuz id really like to learn

alex923 is offline   Reply With Quote
Old 09-25-05, 10:53 PM   #2
clint4130's Avatar
Join Date: May 2005
Location: atlanta georgia
Bikes: a 20" premium products frame with oddyssey and primo parts and a haro escape 8.2
Posts: 42
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I know the 3900 frame and fork are disk brake compatable, but I'm not sure it the wheels are. Look on the non-drive side of your hubs and see if there are some holes with threading in them, if so than you are good to go. If not than you would need to get new disk compatable wheel, in that case it would be better to sell your bike and buy a 4500 disk or something of that nature. Bunnyhopping is hard to teach on mtbs and even harder to explain over the internet. Long story short, lift the front end of your bike, push your weight a little toward the front and tuck your legs into your body. Use trial and error.
clint4130 is offline   Reply With Quote
Old 09-25-05, 11:24 PM   #3
Senior Member
135crewchief's Avatar
Join Date: Apr 2005
Location: Spokane, Wa
Bikes: 05 Trek 4300, 05 Gary Fisher Tassajarra Disc
Posts: 85
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
i ran into the same problem earlier in the summer on my trek 4300. I found that it wasn't going to make sense to put dics brakes on that bike. so instead i upraded to a gary fisher tassajara disc. Not a high end bike but better than my 4300. and i'm very pleased with the upgrade: better fork, derailers, and has hydraulic disc brakes. i am glad i upgraded bikes intead of putting disc on my 4300.
135crewchief is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 01:01 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    get answers from real people!
Click to start entering your question.