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 01-19-10, 06:36 PM   #1
THonestTeenager
Junior Member
Thread Starter
 
Join Date: Nov 2009
Bikes:
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Is it possible to put an 8 inch rear coil shock on my current 2 in coil shock?

Hi guys,

I have a dual suspension 24" Mongoose XR-75 bike I bought from Wally World (Walmart) 3 years ago when I was only in 7th grade. I have upgraded the bike and its still doing good, nothing broken like you might think from a big box deparment store. However, because my rear shock is only 2 inches of travel, I weigh 121 pounds, and it compresses too easily, I was wondering if I could buy a much longer suspension coil, like the RockShox Vivid 4.1. Will this fit on my bike?

Thanks in advance!
THonestTeenager is offline   Reply With Quote
Old 01-19-10, 07:49 PM   #2
mtnbiker66
Old School Rad
 
mtnbiker66's Avatar
 
Join Date: Sep 2004
Location: The old Mountains
Bikes: Blur LT
Posts: 8,212
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
........post pics when you do it.
__________________
Like a circus monkey on a stolen Harley......
mtnbiker66 is offline   Reply With Quote
Old 01-19-10, 08:06 PM   #3
David325 
BMW Aficionado
 
David325's Avatar
 
Join Date: Feb 2009
Location: Boston, MA
Bikes: '66 Raleigh RSW, '69 Humber Sports, '71 Raleigh Pro, '73 Raleigh Super Course, '74 Raleigh International, '75 + '77 Raleigh Competition, '87 Raleigh Edge, others
Posts: 230
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Not to be critical or anything, but your bike is worth a fraction of the shock. Doing so would not only probably be impossible, but monetarily illogical. My recommendation: Pick up a decent bike used for the price of the shock.
David325 is offline   Reply With Quote
Old 01-19-10, 08:15 PM   #4
victim
Senior Member
 
victim's Avatar
 
Join Date: Jun 2007
Bikes:
Posts: 820
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sure why not? The Vivid is a good shock. Would be a nice upgrade from whats on there now. Definitely post up pics
victim is offline   Reply With Quote
Old 01-19-10, 10:51 PM   #5
crusty1207
Mechanic / Flunkie
 
crusty1207's Avatar
 
Join Date: Dec 2009
Location: Somewhere not here or there
Bikes: 2008 Haro Xeon, 2005 Gary Fisher Marlin, 2005 Specialized Big Hit SPEC, 2005 Azonic Evolution, 1986 Kuwahara Magician
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I doubt the Vivid shock will mate up with that bike frame. The shock's eye to eye length is way too long and the mounting tabs are way too wide to fit the bike's mounting brackets. I also doubt you would be able to find mounting hardware to fit the shock to the bike. The piggyback unit would probably hit the frame due to clearance issues.

Vivid shocks, like most coil shocks, do not come with a coil spring. You have to order those separately. If you plan on keeping the bike, then I would see about getting a new, heavier spring. Just measure your existing coil spring's overall length and inside diameter, go to eBay, and look for a replacement. Either that or get yourself a new bike. The money you would spend on a new shock can go towards a new bike or a really good used one.

Last edited by crusty1207; 01-19-10 at 10:59 PM.
crusty1207 is offline   Reply With Quote
Old 01-19-10, 11:10 PM   #6
dminor 
Moar cowbell
 
dminor's Avatar
 
Join Date: Oct 2004
Location: The 509
Bikes: are awesome.
Posts: 12,429
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
I love this place!
__________________

Quote:
Originally Posted by Mark Twain
"Don't argue with stupid people; they will drag you down to their level and then beat you with experience."
dminor is offline   Reply With Quote
Old 01-19-10, 11:46 PM   #7
Ahnold. 
Why HAWT dang!
 
Ahnold.'s Avatar
 
Join Date: Nov 2007
Location: Nashville, Tennesse
Bikes: Fat Chance
Posts: 56
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
22
Ahnold. is offline   Reply With Quote
Old 01-20-10, 06:35 AM   #8
IRONHEAD1
Senior Member
 
IRONHEAD1's Avatar
 
Join Date: Apr 2009
Location: Daytona florida
Bikes: Cervelo S1
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Dude my cousin has the exact same setup on his "goose" you can make it fit you just need to hammer it in there and jam in the bolts. might take 2 or 3 guys to jam it in there but it wont bottom out anymore.......
IRONHEAD1 is offline   Reply With Quote
Old 01-20-10, 08:05 AM   #9
THonestTeenager
Junior Member
Thread Starter
 
Join Date: Nov 2009
Bikes:
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thank you all for the helpful answers! I guess I cannot put an 8 inch shock then... Oh well. Thanks again!

P.S. Since I'm new, I don't know how to post pictures on this forum.
THonestTeenager is offline   Reply With Quote
Old 01-20-10, 08:42 AM   #10
Grimlock
Frozen in carbonite
 
Grimlock's Avatar
 
Join Date: Oct 2004
Location: Ottawa
Bikes: '85 Full Cycle Cycle.
Posts: 805
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If you're going to do it, wouldn't it be a lot easier to buy a new stiffer coil for the shock you already have? With that said, my vote still says buy a new bike first.
__________________
Quote:
Originally Posted by sp00ki View Post
Using a nicer sealed bearing headset vs a $10 set is like throwing a frisbee vs a dodgeball.
Grimlock is offline   Reply With Quote
Old 01-20-10, 11:12 AM   #11
dminor 
Moar cowbell
 
dminor's Avatar
 
Join Date: Oct 2004
Location: The 509
Bikes: are awesome.
Posts: 12,429
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Quote:
Originally Posted by THonestTeenager View Post
Thank you all for the helpful answers! I guess I cannot put an 8 inch shock then... Oh well. Thanks again!

P.S. Since I'm new, I don't know how to post pictures on this forum.
I've been just laughing but I guess I should actually be helpful for a change.

Everyone here is right - - do not mess with a new shock for that bike. First of all, it being a very small frame, it's a non-standard eye-to-eye (the shock mount eyes) length, so you won't find an adequate replacement. Secondly, the bike is not worth spending that kind of money on (trust me, I know this firsthand - - don't ask). Thirdly, if you were to put any larger shock on, it would throw the entire geometry of the bike off dangerously.

Best to start saving for a new non-discount-store bike to replace it with.

On to posting photos: The best way is to start a free subscription to a photo-hosting site like ImageShack or PhotoBucket and use their easy interface to upload. Once they are there, you can create an easy link to embed them in your post either directly by bracketing the photo's unique URL with [img] [/img] bracketing or letting the reply window do it for you by clicking the little picture icon and pasting the URL into that.
__________________

Quote:
Originally Posted by Mark Twain
"Don't argue with stupid people; they will drag you down to their level and then beat you with experience."
dminor is offline   Reply With Quote
Old 01-20-10, 12:25 PM   #12
SneakyKing
Senior Member
 
SneakyKing's Avatar
 
Join Date: Feb 2009
Location: Dayton, ohio
Bikes: 2009 Gary Fisher Paragon, 2008 Trek fuel EX 6.5, 2005 Giant XTC, 2006 Fuji Team, 1978 Raleigh Grand Prix Fixie
Posts: 151
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I would worry about buying anything for that bike. However since its a cheap coil shock it might have a compression ring so that you can stiffen it up. give that a try while you save for a decent bike, it will be worth it
SneakyKing 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 11:26 AM.