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

Reply
 
Thread Tools Search this Thread
Old 06-20-04, 07:32 PM   #1
wonder squirrel
Senior Member
Thread Starter
 
Join Date: Jun 2004
Bikes:
Posts: 216
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
03' DirtJumper 2 Disc Sizes

Can anyone confirm what size rotor will fit on a 03' Marzocchi DirtJumper 2 with the regular QR? The Marz site says it is setup for a 6"(160mm), but would an 8"(203mm) work with an adaptor? I think I'm going to run the Avid Mech's (for simplicity, adjustability, cost, and it's probably more stopping power then I would need), but I would like to run the 8" rotor if possible.
wonder squirrel is offline   Reply With Quote
Old 06-20-04, 08:06 PM   #2
FoX Rider
The Man.
 
FoX Rider's Avatar
 
Join Date: Jun 2004
Location: Sitting
Bikes: Haro Extreme X3 with Hayes Mags and Evil DRS
Posts: 1,070
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'd say you should go 6" like there website said. Just because you wanted to keep it simple and you don't think you will need the stopping power.
FoX Rider is offline   Reply With Quote
Old 06-20-04, 10:27 PM   #3
BurlySurly
Pedalphile
 
BurlySurly's Avatar
 
Join Date: Dec 2002
Location: Tennessee
Bikes: better ones than yours
Posts: 514
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You can use either a 6 or an 8 without a problem. People might try and tell you that an 8 is too much for standard dropouts, but thats simply a myth. 8 will work fine.
BurlySurly is offline   Reply With Quote
Old 06-21-04, 10:01 AM   #4
a2psyklnut
NCAA - DUAL CHAMPIONS!
 
a2psyklnut's Avatar
 
Join Date: Mar 2000
Location: From Sarasota, FL sitting in front of a computer spewing random thoughts!
Bikes: Intense Uzzi SL, Masi Speciale, Trek 3700 Nashbar Single Speed, Old Cilo Road frame
Posts: 7,964
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If you go with a QR-20 thru hub axle, you will ONLY be able to run an 8" (unless you bastardise the adapter like I did). If you go with standard drop-outs, you can use either one.

L8R
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, What a Ride!" - unknown
"Your Bike Sucks" - Sky Yaeger
a2psyklnut is offline   Reply With Quote
Old 06-21-04, 11:48 AM   #5
BurlySurly
Pedalphile
 
BurlySurly's Avatar
 
Join Date: Dec 2002
Location: Tennessee
Bikes: better ones than yours
Posts: 514
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by a2psyklnut
If you go with a QR-20 thru hub axle, you will ONLY be able to run an 8" (unless you bastardise the adapter like I did). If you go with standard drop-outs, you can use either one.

L8R
That's not true. They have QR20 6 inch adaptors. He can run what he wants.
BurlySurly is offline   Reply With Quote
Old 06-21-04, 01:02 PM   #6
a2psyklnut
NCAA - DUAL CHAMPIONS!
 
a2psyklnut's Avatar
 
Join Date: Mar 2000
Location: From Sarasota, FL sitting in front of a computer spewing random thoughts!
Bikes: Intense Uzzi SL, Masi Speciale, Trek 3700 Nashbar Single Speed, Old Cilo Road frame
Posts: 7,964
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Really? I couldn't find any. The only ones I could find for my Z1 were for 8". I'd really like to "unbastardize" my bike. I can either get an 8" rotor and a new adapter or stick with my 6" rotor and just get a new adapter.

Do you have a link or a resorce for the 6" adapter?

Thanks
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, What a Ride!" - unknown
"Your Bike Sucks" - Sky Yaeger
a2psyklnut is offline   Reply With Quote
Old 06-21-04, 01:06 PM   #7
Maelstrom 
Wood Licker
 
Maelstrom's Avatar
 
Join Date: Apr 2002
Location: Whistler,BC
Bikes: Transition Dirtbag, Kona Roast 2002 and specialized BMX
Posts: 16,885
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hayes offers a 6" adaptor. I run one on my 2002 z1 fr. No mods needed ...
Maelstrom is offline   Reply With Quote
Old 06-21-04, 01:07 PM   #8
Maelstrom 
Wood Licker
 
Maelstrom's Avatar
 
Join Date: Apr 2002
Location: Whistler,BC
Bikes: Transition Dirtbag, Kona Roast 2002 and specialized BMX
Posts: 16,885
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I don't think it is any different than the standard 6" adaptor btw. I know it worked on my QR and qr20 fork.
Maelstrom is offline   Reply With Quote
Old 06-21-04, 01:27 PM   #9
a2psyklnut
NCAA - DUAL CHAMPIONS!
 
a2psyklnut's Avatar
 
Join Date: Mar 2000
Location: From Sarasota, FL sitting in front of a computer spewing random thoughts!
Bikes: Intense Uzzi SL, Masi Speciale, Trek 3700 Nashbar Single Speed, Old Cilo Road frame
Posts: 7,964
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
When I got my new Z-1, my adapter from my Psylo wouldn't work, so I figured I'd just buy a new one. Lo and behold, I couldn't find one for a 6" rotor, only the 8" if I had the QR-20 option.

L8r
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, What a Ride!" - unknown
"Your Bike Sucks" - Sky Yaeger
a2psyklnut is offline   Reply With Quote
Old 06-21-04, 02:08 PM   #10
BurlySurly
Pedalphile
 
BurlySurly's Avatar
 
Join Date: Dec 2002
Location: Tennessee
Bikes: better ones than yours
Posts: 514
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Maelstrom
I don't think it is any different than the standard 6" adaptor btw. I know it worked on my QR and qr20 fork.
The adaptor for a 20mm fork and a QR fork are not the same. The QR adaptor is a bit wider, they are available from Hayes.
BurlySurly is offline   Reply With Quote
Old 06-21-04, 02:29 PM   #11
Maelstrom 
Wood Licker
 
Maelstrom's Avatar
 
Join Date: Apr 2002
Location: Whistler,BC
Bikes: Transition Dirtbag, Kona Roast 2002 and specialized BMX
Posts: 16,885
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Oh sorry...I ended up using the same adaptor with spacers...my mistake.
Maelstrom is offline   Reply With Quote
Old 06-21-04, 03:21 PM   #12
a2psyklnut
NCAA - DUAL CHAMPIONS!
 
a2psyklnut's Avatar
 
Join Date: Mar 2000
Location: From Sarasota, FL sitting in front of a computer spewing random thoughts!
Bikes: Intense Uzzi SL, Masi Speciale, Trek 3700 Nashbar Single Speed, Old Cilo Road frame
Posts: 7,964
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yeah, that's what I ended up doing!!! Works, but kinda rigged!

L8R
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, What a Ride!" - unknown
"Your Bike Sucks" - Sky Yaeger
a2psyklnut is offline   Reply With Quote
Old 06-21-04, 07:35 PM   #13
Xtreme Biker
Guest
 
Bikes:
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
8" is the only solution....
  Reply With Quote
Old 06-22-04, 03:27 PM   #14
FoX Rider
The Man.
 
FoX Rider's Avatar
 
Join Date: Jun 2004
Location: Sitting
Bikes: Haro Extreme X3 with Hayes Mags and Evil DRS
Posts: 1,070
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have 8" rotors on my DJ II's only problem. Don't know if there '03 or '04
FoX Rider is offline   Reply With Quote
Old 06-22-04, 05:04 PM   #15
wonder squirrel
Senior Member
Thread Starter
 
Join Date: Jun 2004
Bikes:
Posts: 216
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by FoX Rider
I have 8" rotors on my DJ II's only problem. Don't know if there '03 or '04
Hey FoX, Do you have the QR20 (through axle) setup, or the regular QR?

For you guys who are running the spacers with the adaptors, does it degrade the brakes quality at all, or is it just a cosmetic concern for you? Depending on the thickness, I'd think flex would become an issue? (I'm a heavy fella remember)

One more question for ya, I use mostly my rear brakes, atleast 99.9% of the time so I keep them dialed in, (BMX heritage I guess) but when I do use my front brakes, I want them to be almighty powerful (after all, if I wanted crappy brakes I'd just take my feet off the pedals and drag em') so would I see a huge difference in stopping power using a 6" rotor upfront, and going with the beefier 8" out back? By the way I have no qurrals(<-spell check me) using a spacer or two so long as it doesn't directly affect the stopping power
wonder squirrel is offline   Reply With Quote
Old 06-22-04, 05:11 PM   #16
Maelstrom 
Wood Licker
 
Maelstrom's Avatar
 
Join Date: Apr 2002
Location: Whistler,BC
Bikes: Transition Dirtbag, Kona Roast 2002 and specialized BMX
Posts: 16,885
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It doesn't degrade braking quality in the least.

On trails you should learn to use more front, regardless of background. But yes, 8inches makes a big difference in braking power.
Maelstrom is offline   Reply With Quote
Old 06-22-04, 05:34 PM   #17
FoX Rider
The Man.
 
FoX Rider's Avatar
 
Join Date: Jun 2004
Location: Sitting
Bikes: Haro Extreme X3 with Hayes Mags and Evil DRS
Posts: 1,070
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by wonder squirrel
Hey FoX, Do you have the QR20 (through axle) setup, or the regular QR?
QR20 The Haro has 8" in front and 6" in back. So i'm not sure about stopping power. From my experience with this bike (only had it a il over a week) the 6" rotors work fine. I've never used an adapter so can't really answer that.
FoX Rider is offline   Reply With Quote
Reply


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 12:58 PM.