Need a new shock

[pirate]

In trying to get my XC bike back in business, I discovered that my shock seems to be screwed. I can push down on the bike, really easily, about a half inch before it "clunks." Then if I keep pushing down, it will go into the real travel. Not sure if I want to invest any time or money into this shock. It is a 2005 Rock Shox MC3R that came on stock my Trek Fuel EX8. I'm sure it is too lightweight to handle my big fat ass. Anyway, my question is, what would be a good replacement shock for a BIG dude. I'm talking like 250 pounds. I've got a goal to lose a bunch of weight in the upcoming months, but for the time being, I need something that can hold up to the abuse I will give it. Does anyone make 100mm coil shock? If not, what else would you recommend?

[micky]

I have a cane creek ad-12. It is an air shock. Let me know if you are interested.

[jabberwocky]

Are you talking about the shock or fork? Everything points to shock, except listing the size as 100mm (where shocks are usually measured by eye-to-eye and stroke).

[pirate]

Are you talking about the shock or fork? Everything points to shock, except listing the size as 100mm (where shocks are usually measured by eye-to-eye and stroke).

Sorry, I got that off a website when I tried to look up the exact shock that was on my bike. I'm honestly not sure what the eye-to-eye is on it... Need to research a little more, or take it off and measure tomorrow.

[punga]

Sorry, I got that off a website when I tried to look up the exact shock that was on my bike. I'm honestly not sure what the eye-to-eye is on it... Need to research a little more, or take it off and measure tomorrow.
I have a Fox Septune (7 levels of ProPedal, made exclusively for Specialized) that measures eye to eye is 7.5" and stroke is 1.75". It's been serviced once in the 3 years I've had it. I could let it go if fits your frame.

p!

[BikerMiker]

Nothing wrong with a nice coil (at the right weight). You might not be able to find a coil shock to fit your bike. If you lose weight, you'll have to get a new spring. Coils are funny that way...

mike

[jabberwocky]

Sorry, I got that off a website when I tried to look up the exact shock that was on my bike. I'm honestly not sure what the eye-to-eye is on it... Need to research a little more, or take it off and measure tomorrow.Yeah, you'll need a size to figure out whats available that will actually fit. 100mm is probably rear wheel travel, not anything to do with the shock (too short to be i2i and too long to be stroke).

A major factor is going to be the leverage ratio of your rear suspension. Any shock should work as long as you are within the air pressure/spring range. However, if the bike has a high leverage ratio then you may need to be at the limit/exceed the max air pressure of air shocks to get it working for your weight, or require a very heavy spring (which may or may not fit) to get a coil working.

The overall leverage ratio of the bike is determined by dividing the rear wheel travel by shock stroke.

[chowderbutt]

I bought one of the shocks that sant cruz is dumping (link below) at crazy prices and put it on my mt cycle - works great if the eye to eye and stroke matches


http://www.santacruzbicycles.com/catalog/product_info.php?products_id=243&osCsid=7upde07556k7ttuhsdd1hfl1a2

[pirate]

Anyone got any idea what size this shock is? This is all I have been able to find... http://www.trekbikes.com/us/en/bikes/2005/archive/fuelex8

EDIT: Okay, I just found this: (not sure which configuration it is)

Description:
[ MC ] - 3.R Features & Specs
Configuration 1: 165x38 (6.5x1.5)
Configuration 2: 190x50 (7.5x2.0)
Configuration 3: 200x50 (7.875x2.0)
Target Weight*: 250g
Damping: Motion Control
Adjust: Remote open to lock, Floodgate
Spring: Air positive
Adjust: Schrader valve
Shaft Material: 7075 aluminum
Shaft Diameter: 10mm
Body Material: Forged 6061 aluminum
Body Diameter: 25mm
Body Finish Clear hard anodized
Upgrades: Over 3.3: remote actuation
*Target weight based on 165x38 (6.5x1.5) configuration

[urbaindk]

Pull the shock off the bike and measure the distance between the two holes. That's your Eye-2-Eye.

Then compare to these numbers:

Configuration 1: 165x38 (6.5x1.5)
Configuration 2: 190x50 (7.5x2.0)
Configuration 3: 200x50 (7.875x2.0)

The first number is the I2I. The second number is the stroke length. In case you hadn't figured out the first set of numbers is in mm the second set is in inches. Go out and find a shock that has the same I2I and stroke and you should be good to go.

Also, the clunk you are describing almost sounds like you have worn out the bushings. You might be able to simply replace the bushings and shock hardware for $20 or so and keep the same shock.

[mark w]

If I was a betting man, I'd say it's most likely a 6.5" x 1.5" for a 2.66:1 ratio. From there, standard shock sizes tend to jump to 7.5"x2" which would give you a 2:1 (not likely). Just measure the distance between the mounting bolts.

Best bets are probably Float/RP3/RP23 or Roco air if they make one that small. This (http://www.ridemonkey.com/classifieds/cat-11/ad-4767/) is another option. While it valved for a lighter guy, it's also off a higher leverage bike (120mm vs 100). Another option (http://www.ridemonkey.com/classifieds/cat-11/ad-4627/) which has advantage of being cheaper and more user adjustable. Sending it to PUSH for more LSC would help keep things plush yet not wallowy in G-outs. I don't know either of those guys so buyer beware but they're pretty good deals. Reducers should transfer to the new shock w/o issue.

[pirate]

So, I measured the eye-to-eye of the shock, and it is indeed 6.5x1.5.

[halfinch]

i'm not much help to ya then pirate.

my shocks are 7.5 and 7.25 e to e. check craigs, ebay and a maybe do a search at qbike dot com.

re-reading the earlier post from urbaindk the 7.5 may work providing that the frame has multiple bolting mounts on the frame. i don't need it so if it fit's let me know. it's an older vanilla coil.

[pirate]

Seems like a Swinger 4-Way is one of the only options... That, or a Cane Creek Double Barrel, and there' no way in hell I'm shelling out the cash for one of those.

[jabberwocky]

Seems like a Swinger 4-Way is one of the only options... That, or a Cane Creek Double Barrel, and there' no way in hell I'm shelling out the cash for one of those.
Cane Creek Cloud Nine (http://aebike.com/page.cfm?PageID=30&action=details&sku=RS1213)
Rockshox Ario (http://aebike.com/page.cfm?PageID=30&action=details&sku=RS1536)

[pirate]

Cane Creek Cloud Nine (http://aebike.com/page.cfm?PageID=30&action=details&sku=RS1213)
Rockshox Ario (http://aebike.com/page.cfm?PageID=30&action=details&sku=RS1536)

Ah, I was thinking coil... Do you think the Cloud Nine or the Ario would hold up to the abuse I would give them?

[DaveG]

Seems like a Swinger 4-Way is one of the only options... That, or a Cane Creek Double Barrel, and there' no way in hell I'm shelling out the cash for one of those.

I'd keep your eyes open for an old Fox Vanilla shock. They used to make them in that size.

Dave

[jabberwocky]

Ah, I was thinking coil... Do you think the Cloud Nine or the Ario would hold up to the abuse I would give them?I have no idea. :) I didn't realize you were looking for coil.

You could check the clyde forum on MTBR. Lots of info on how equipment holds up under big guys.

[oldskoolbiker]

Pirate I've got an OLD and I mean OLD (circa 1998) fox vanilla coil 6.5x1.5. It's yours if you want it. If you just need to get the bike rideable again.

However you'll need new mounting hardware because Fox shocks mounting eyelets are 1/2" (12.7mm) and Rock Shox is 12mm.

Rock Shox and Manitou are 12mm, keep that in mind if you want to avoid buying mounting hardware.

[pirate]

Pirate I've got an OLD and I mean OLD (circa 1998) fox vanilla coil 6.5x1.5. It's yours if you want it. If you just need to get the bike rideable again.

However you'll need new mounting hardware because Fox shocks mounting eyelets are 1/2" (12.7mm) and Rock Shox is 12mm.

Rock Shox and Manitou are 12mm, keep that in mind if you want to avoid buying mounting hardware.

Yeah, man... That might be just the ticket. How hard do you think the mounting hardware would be to find?

[philvw]

I've had to get mounts while swapping shocks around on bikes. Just call Fox, and they will have them, I think shipoping was more than the actual part if I recall correctly.
I just told them what kind of shock, and what kind of bike, and they sent me the right ones.

[oldskoolbiker]

Yeah, man... That might be just the ticket. How hard do you think the mounting hardware would be to find?

Mounting hardware is easy to find. Just measure the diameter of your mounting bolt (usually 6mm or 8mm) most likely 6mm on a XC bike.

Then measure the width of the existing mounts. They are usually somewhere between 22.2 and 30mm.

Then just order the size you need for each eyelet.
BTW Rock Shox Vivid/Monarch mounts fit Fox and they are nicer.

You could also probably call fox and get them also.

I think the Rock Shox mounts are around $15 per eyelet, so $30 for both.

[pirate]

Mounting hardware is easy to find. Just measure the diameter of your mounting bolt (usually 6mm or 8mm) most likely 6mm on a XC bike.

Then measure the width of the existing mounts. They are usually somewhere between 22.2 and 30mm.

Then just order the size you need for each eyelet.
BTW Rock Shox Vivid/Monarch mounts fit Fox and they are nicer.

You could also probably call fox and get them also.

I think the Rock Shox mounts are around $15 per eyelet, so $30 for both.

PM'd ya, oldskool.