Race Face Diabolus Stem

4.91/5 (33 Reviews)
Weight : 250 grams (50mm) MSRP : $80.00


Product Description

From steep descents to high impact drops, the Race Face Diabolus, as the name suggests, was built for one thing – going fast as Hell.

Machined from 6061-T6 aluminum, the Diabolus is the stiffest, strongest stem available today, making it the ideal choice for DH racers and hardcore Freeriders.

Features:
  • Designed strictly for DH/Freeride Use
  • Interlocking U-shaped handlebar
  • Opposing bolts on steer tube clamp

    Size: 50mm & 70mm
    Rise: 10 degrees
    Colours: Black and Silver


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

    Reviews 1 - 15 (33 Reviews Total) | Next 15

    User Reviews

    Overall Rating:5
    Value Rating:5
    Submitted by Hangtime a Weekend Warrior from Portland, OR

    Date Reviewed: October 6, 2008

    Strengths:    stiff and srtong

    Weaknesses:    none

    Bottom Line:   
    Great stem, 50mm reach is perfect for me. Very strong and reasonable weight. very strong bar clamp. I never have to worry about it, thats what makes it great.

    Expand full review >>

    Favorite Trail:   Crank it Up

    Duration Product Used:   2 Years

    Price Paid:    $50.00

    Purchased At:   Price Point

    Similar Products Used:   Truvativ Hussefelt


    Overall Rating:5
    Value Rating:5
    Submitted by Erik a Cross Country Rider from Powell, TN, USA

    Date Reviewed: February 2, 2008

    Strengths:    Cool looking, strong as all

    Weaknesses:    yeah right

    Bottom Line:   
    This thing reminds me of my BMX days, cool looking and strong. These 29ers have some flex in the front end, this thing doesnt move. I'm ride hard and rugged...this stem was made for me....

    Expand full review >>

    Favorite Trail:   Haw Ridge, Tsali, all singletrack

    Duration Product Used:   1 Year

    Price Paid:    $80.00

    Purchased At:   ebay

    Similar Products Used:   bontrager, thompson

    Bike Setup:   29er X-cal, easton carbon bars, XT crank, time atac, x-9, michelin tires

    Overall Rating:5
    Value Rating:5
    Submitted by Chris a Weekend Warrior from Middleboro, MA

    Date Reviewed: December 28, 2007

    Strengths:    Super strong, light, coool looking

    Weaknesses:    None

    Bottom Line:   
    Believe the hype. Huge cool factor with strength factor. Go a little short with the stem and go long with the air. Able to manipulate the bike much better in the air. Don't get anything else.

    Expand full review >>

    Favorite Trail:   Vietnam, Borderland

    Duration Product Used:   6 months

    Price Paid:    $50.00

    Purchased At:   Ebay

    Bike Setup:   Yeti 575

    Overall Rating:5
    Value Rating:5
    Submitted by jay reid a Downhiller from halifax

    Date Reviewed: March 26, 2007

    Strengths:    It is the best stem i have ever had looks sweet and solid
    as a rock


    Weaknesses:    r u kiddin there aint no weaknees with this stem

    Bottom Line:   
    well the bottom line is this stem with the handle bar is all u need

    Expand full review >>

    Favorite Trail:   Mine

    Duration Product Used:   3 months

    Price Paid:    $150.00

    Purchased At:   cyclesmith

    Similar Products Used:   tru vativ

    Bike Setup:   05 p.2 7"Jr.T,double track rims raceface diablous stem and handlebar,tru-vativ husselfelt cranks,single speed

    Overall Rating:5
    Value Rating:5
    Submitted by a cas a Weekend Warrior from thunder bay on

    Date Reviewed: February 22, 2007

    Strengths:    strong, good bolt pattern

    Weaknesses:    nothing

    Bottom Line:   
    Good product, a bit expensive if you buy it new.

    Expand full review >>

    Favorite Trail:   mine

    Duration Product Used:   1 Year

    Price Paid:    $15.00

    Purchased At:   ebay.ca

    Similar Products Used:   stock stems

    Bike Setup:   rocky flow

    Overall Rating:5
    Value Rating:5
    Submitted by Ion a Weekend Warrior from Indonesia

    Date Reviewed: November 13, 2006

    Strengths:    Top CNCed build and finished. Very strong build and design wise. Basically "install and forget" parts that you do not need to worry.

    Weaknesses:    Nothing so far.

    Bottom Line:   
    A very strong and stiff stem not only material wise but also design wise. The handle bar is fitted into the main body of the stem, and the cap of the stem has a tounge that interlock with the main body. This design will distribute the force not just to the bolts but also to the main body of the stem. I have not seen other stem with this design and I am sure this is why the diabolous stem has such a strong reputation.

    Expand full review >>

    Duration Product Used:   3 months

    Price Paid:    $60.00

    Similar Products Used:   Giant OEM stem

    Bike Setup:   Giant Faith

    Overall Rating:5
    Value Rating:5
    Submitted by alex a Downhiller from trinity california

    Date Reviewed: August 5, 2006

    Strengths:    every thing about it.

    Weaknesses:    none

    Bottom Line:   
    why haven't you ordered one yet?

    Expand full review >>

    Favorite Trail:   own

    Duration Product Used:   3 months

    Price Paid:    $60.00

    Purchased At:   beyond bikes

    Bike Setup:   heckler freeride set up

    Overall Rating:5
    Value Rating:5
    Submitted by Lou Gout a Racer from London

    Date Reviewed: April 30, 2006

    Strengths:    Will never break. There is no cooler looking stem. May not be for all but taste is something that cannot be argued about. Most will agree this stem is worth every penny based on looks alone

    Weaknesses:    None, its heavier because its stronger - Bottom line.
    Made in canada, home of the most insane riders in the world. If it's good enough to last in British columbia. . . enough said


    Bottom Line:   
    Yeah, this stem is the dog's bollocks. Its sick looking, very strong, will hold the bar securely (forever). Anything going wrong with this stem seems very unlikely.
    Serious xc racers obviously will look elsewhere but those of us who appreciate rigidity, flash and something that will last for life should buy this stem Can attract a lot of attention as it adds much to your bikes appearance, so watch our for the dodgy folk who 'just wanna take your bike for a spin'. Londoner's - buy a cannister of mace to go along with it.
    5 flaming ringpieces for this one

    Expand full review >>

    Duration Product Used:   6 months

    Price Paid:    $50.00

    Similar Products Used:   azonic, kore, many others

    Bike Setup:   bloody bullet-proof

    Overall Rating:5
    Value Rating:4
    Submitted by Dan a Weekend Warrior from Waterloo, Ontario

    Date Reviewed: November 14, 2005

    Strengths:    Sexy, strong

    Weaknesses:    none

    Bottom Line:   
    Pretty basic review...this stem is super tough and it looks great. If you get the 70mm length it looks kinda odd but the 30mm and 50mm stems are pure sex. This stems seems strong enough to handle anything but a lot of stems are these days so what sets this one apart is the style. There are lighter stems but not ones that are stronger...it has a good strength to weight ratio.

    5 flames chilli's for a product that works flawlessly and looks good doing it.

    Expand full review >>

    Duration Product Used:   3 months

    Price Paid:    $60.00

    Purchased At:   PricePoint.com

    Bike Setup:   Rocky Mountain Switch

    Overall Rating:5
    Value Rating:5
    Submitted by calen a Weekend Warrior from sf bay area

    Date Reviewed: May 24, 2005

    Strengths:    unbreakable
    sexy sex


    Weaknesses:    chrome bolts rust and mar an otherwise stealth stem

    Bottom Line:   
    No other stem out there matches killer stiffness and strength with such hot CNC machining - no self-respecting freerider/DHer shouldn't run this stem
    75 bucks is a bit of dough for a stem but:
    A) it's nothing compared to a solid gold stem
    B) it's the last stem you will ever have to buy

    Expand full review >>

    Favorite Trail:   güch smoke

    Duration Product Used:   3 months

    Price Paid:    $20.00

    Purchased At:   friend

    Similar Products Used:   hussefelt 40mm

    Bike Setup:   Transition Dirtbag, burled

    Overall Rating:5
    Value Rating:5
    Submitted by Terry a Weekend Warrior from Montreal, QC, Canada

    Date Reviewed: May 17, 2005

    Strengths:    Awesome looking, seems unbreakable, ease of installation

    Weaknesses:    None so far

    Bottom Line:   
    Raceface may cost a little more....but once you own one you will notv feel you paid too much....i will never change them again...GOOD JOB RACEFACE !!!

    Expand full review >>

    Duration Product Used:   Less than 1 month

    Price Paid:    $114.00

    Purchased At:   Le Yeti

    Similar Products Used:   Titec & Norco oem stem

    Bike Setup:   '05 Norco Bigfoot, Hayes HFX-9 HD, Truvativ crank, Raceface Diabolous stem and handlebars

    Overall Rating:5
    Value Rating:5
    Submitted by duane a Cross Country Rider from aurora, colorado

    Date Reviewed: March 19, 2005

    Strengths:    warranty,killer looks,pretty tough.

    Weaknesses:    mine cracked after two years .

    Bottom Line:   
    after two years on my rockhopper and one year on my kona this stem's faceplate was discolored and faded looking,not the stem,just faceplate which seems to be made from a lower grade aluminum. after three years the metal on the sides of the faceplate had cracked on all four sides. this may have been caused by overtightening, but when you look at the thickness of the aluminum around the bolts that hold the faceplate on you can see there is almost NO METAL on the sides of the bolt heads. anyway, raceface replaced without even wanting the old one.way to go,raceface! i have since switched to a dangerboy tank which has MORE METAL around the bolts,but i got top dallar resale for the diabolous with the replacement faceplate, and true service from raceface, so five flaming stinkbombs overall.

    Expand full review >>

    Favorite Trail:   roxborough/ i.c. loop

    Duration Product Used:   More than 3 years

    Price Paid:    $80.00

    Purchased At:   lbs

    Similar Products Used:   dangerboy tank,deus xc, ton of oem's.

    Bike Setup:   kona coiler, xt , race face , dangerboy , best of the best of the blah blah blah,bling blang shizang!

    Overall Rating:5
    Value Rating:4
    Submitted by Mitch T a Downhiller from Cowgary

    Date Reviewed: January 25, 2005

    Strengths:    Looks,Strenth,Durrability, rideability.
    Really STRONG


    Weaknesses:    Abit pricey, but not overly. Weight

    Bottom Line:   
    Wicked stem, definetly worth the price.
    For a FR stem this thing rocks, if your a DH racer looking for a light strong stem this isnt for you (Go thompson).
    This is another example of a raceface part you can throw on your bike, and not have to worry about if its going to hold up on a drop/gap. Lets you focus on doing the stunt, which is what its all about. Go for it

    Expand full review >>

    Favorite Trail:   Gaps

    Duration Product Used:   2 Years

    Price Paid:    $100.00

    Purchased At:   Bow

    Similar Products Used:   Specialized stem, etc

    Bike Setup:   Demo 9, 05 888RC, king, etc

    Overall Rating:5
    Value Rating:4
    Submitted by Max L a Downhiller from Burlington Ontario Canada

    Date Reviewed: October 22, 2004

    Strengths:    Stiff

    Design

    Looks

    Stiff

    Stiff?



    Weaknesses:    Absolutely nothing...Great design..This is a must, save up and buy this!

    Bottom Line:   
    Wow, buy this stem its amazing. Super stiff, great for descents. :- )

    Expand full review >>

    Favorite Trail:   Highway

    Duration Product Used:   3 months

    Purchased At:   B-Cycle

    Similar Products Used:   Axiom something something

    Bike Setup:   2004 Norco Aline..888rt...Diabolus stem...

    Overall Rating:5
    Value Rating:5
    Submitted by Ryan R. from Long Island N.Y.

    Date Reviewed: September 2, 2004

    Strengths:    No this is a S-T-R-O-N-G A$$ Stem! No slipping, no bending, no cracking or creaking! Just Strong, Stiff, and built to last! This sucka will hold on to your bars and your steerer tube like an 800 lbs Gorilla! I have never had it slip even through some NASTY Drops! If looks could kill you'd be DEAD for installing this stem!

    Weaknesses:    Heavy for you weight weenies out there but most weight weenies don't Freeride or downhill! So Nothin, Nada, Zip, Zero! BULLIT PROOF!

    Bottom Line:   
    First off I am a Freerider Not just a Downhiller!

    As for this stem it is close to bullit proof. I would recommend this stem to anyone who rides through nasty trails and loves to Freeride and do massive drops! It has yet to slip or creak at all! If looks could kill then this stem has it all! After you install it take time to just look at it pearched up there! The graphics are awesome just wish they were integrated into the stem. You know some nice laser eching, I guess that might ruin the strength of it though! If your a weight weenie then go some place else but if your freeriding and not building your bike up tough, then it will more than likely it's gonna break really soon. Heavy Duty means Heavy weight no way around it, if your looking for a really strong stem for Freeriding or Downhilling get this one and it will be your last one you buy, EVER!!!! PEACE!!!!!

    Expand full review >>

    Favorite Trail:   Ones with dirt, rocks, and an occsional tree

    Duration Product Used:   3 months

    Price Paid:    $65.00

    Purchased At:   Jenson.com

    Similar Products Used:   Thomson, RaceFace, Kona, Specailized and others!

    Bike Setup:   Kona Stinky with Jr. T Fork, Azonic A-frame pedals, Raceface Diaboulus Group for Freeride!

    Reviews 1 - 15 (33 Reviews Total) | Next 15

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


    RaceFace Diabolus 2 (D2) Stem--good or bad?

    Well with the closing of Race Face, and in the market for a new stem...found one of the last D2 stems floating around. Anyone have experience on these? Good stems or, should I pass and get a Thomson? ThanksRead More »

    Diabolus Crankset Set-Up?

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    Cranks - Holzfeller or Diabolus?

    Just got a 2009 V-10. Currently has '09 Holzfeller that were raced for 1 season. I also have a new set of Diabolus that I've ridden about 3 times on my FR bike. Holzfeller most likely needs a new BB, but I have an XT in good shape. Thoughts? Swap to Diabolus, or just replace BB? I don't race, w ... Read More »

    09 Shimano Saints or Race Face Diabolus cranks Cranks?

    2009 Shimano Saints or Race Face Diabolus Cranks? It will be for a Transition Blindside DH Bike, Im looking at getting 170 lenght. The riding trails are mostly hard rock and yes I am hard on stuff, weight is not a big issue as I am running solid steal cranks right now. PS>>>>It looks like I can get ... Read More »

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