RockShox MC 3.1 Rear Shock

2.33/5 (3 Reviews)
Weight : 240 grams

Product Description

  • Damping: Motion Control
  • Spring: Air Positive with IsoLite Cushion
  • Shift Material: 7075 Aluminum
  • Body Diameter: 25mm

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Reviews 1 - 3 (3 Reviews Total)

User Reviews

Overall Rating:2
Value Rating:3
Submitted by GrantR a Racer from SLO

Date Reviewed: November 16, 2009

Strengths:    Pretty durable shock. I blew out the original in 6 months of riding, but the replacement has put up with 2.5 years of much harder riding. Motion control seems to work, but I just leave it open.

At least in my frame, the shock is way too progressive. I have it set to 30% sag, and it will still buck me on lips, and won't bottom after 5' to flat drops. The high speed compression is just way too stiff, and isn't independently adjustable

Bottom Line:   
A decent shock for xc or trail riding, but has a very nonlinear spring rate so it suppers on the fast technical stuff.

I'm a little disappointed, but haven't stopped eating to save for a new shock yet.

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Duration Product Used:   More than 3 years

Bike Setup:   06 Mongoose Teocali super w/ dual air pike

Overall Rating:1
Value Rating:1
Submitted by Westbayou a Cross Country Rider from Bradenton, FL USA

Date Reviewed: September 9, 2008

Strengths:    None

Weaknesses:    Squeaks when compressed, difficult to adjust. Will not hold air pressure even after a complete rebuild.

Bottom Line:   
I purchased this shock new on my my EX6 as a closeout, and it has not worked yet. Had it completely rebuilt today and it still will not hold air pressure. Hopefully Rockshox steps up to the plate and replaces it with something that does.

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Duration Product Used:   Less than 1 month

Price Paid:    $880.00

Purchased At:   International Bicycl

Similar Products Used:   First time owning a FS bike.

Bike Setup:   2007 Trek EX6, stock + bar ends and upgraded clipless pedals

Overall Rating:4
Value Rating:5
Submitted by Joel Devich a Cross Country Rider from Wilmington DE USA

Date Reviewed: April 7, 2007

Strengths:    It is an adjustable shock. Not expensive if you buy it aftermarket. Good for normal XC riding.

Weaknesses:    squeaks when compressed (might go away after break-in) Not the best for bigger hits

Bottom Line:   
This shock came with my new bike. I used a Fox coil over shock for the past 10 years, and I like how smooth it is. The RS MC 3.1 is a good shock its just not as smooth as a coil over. Im hoping that after the break-in it will smoothen out. I am a 190 lbs rider, and have the shock pumped with 110psi. It is great over small bumps you wont feel them at all, but for the big hits I can use almost all of the travel. I would recommend this shock to Beginner/novice XC riders. Im not sure yet if im going to change it out with a Fox RP23, I will have to see how durable it is. I cant give it 5 chilis due to it being a bit of a task to adjust on the fly, but it will do everything that you want at an in-expensive price.

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Favorite Trail:   Anything in the woods

Duration Product Used:   Less than 1 month

Purchased At:   Bike line

Similar Products Used:   Fox Vanilla coil (1997), Fox RP23, Rockshox Bar

Bike Setup:   Stock 2007 Trek Fuel EX6

Reviews 1 - 3 (3 Reviews Total)

Review Options:  Sorted by Latest Review | Sort by Best Rating

RockShox MC 3.1/ compression not working

Been on the bike for three years now with no problems. I ride about 3 times a week (21miles weekly). Recently, the compression platform just quit working. Even if I dial the compression to full firm, it just keeps bobbing like I had no compression adjustment. I found a rebuld kit with some seals fro ... Read More »

Rock shox MC 3.1

Just picked up a 2007 trek ex 6. It has the MC 3.1, anyone have any experience with this shock? The gold waste control knob doesnt seem to do anything, i can back it full out and it just seems as if it is acting as a nut. There doesnt seem to be anychange in suspension with it all the way in or b ... Read More »

Rockshox MC 3.1 is honking?

When the shock is compressed it doesn't make any noise. But, when it decompresses, it makes a really low pitch whistling sound....almost like a train whistle. The shock is essentially brand new. Any thoughts?Read More »

RS MC 3.1 on a 575

I finally put together a working dogbone mount for the RS MC 3.1 on my 575. I promised Crisillo I would post a description of it, so here it is :D Initially, I bought some bearings to match the 12mm bushing in the RS eyelet, since the Fox is 1/2 inch. Enduro doesn't make bearings the right size, ... Read More »

Lithium 4.0 with MC 3.1 rear shock question

I just got a Lithium 4.0 from Randall Scott (what a great deal!). When it arrived, the rear shock (RS MC3.1) was upside down. I noticed it's that way in the photo of as well. It's kind of a pain to get to the adjustments this way. Does it seem correct upside down? Will it perform di ... Read More »

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