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AC Sport Chain Guide

MSRP $ 60.00
# of Reviews 10
Average Rating 3.2/5
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Submitted by erwin hameelinna a Weekend Warrior from finland
Date Reviewed: March 13, 2002
Favorite Trail:9 feet.com in aber some fing or other Wales
Duration Product Used:1 Year
Price Paid: $50.00
Purchased At:a bike shop i fing its closed now
Strengths:well its a nice pimpy gold colour and thats it!
Weaknesses:it pooo it doesn't keep your chain its that simple! well its more pooy than that ! cos when the chain does get dropped (and it will drop all the time) it either gets sucked in yourback wheel and ar*e it all up or breaks the chain!!!
Similar Products Used:DMR and front mech
Bike Setup:free ride hard tail?
Bottom Line:its crap ! although heres some advices if you were dump and brought one ! set-up tips
1) remove cranks
2) remove bottom backet (with correct tool)
3) remove the AC gay device
4) place the device in your nearest bin
5) buy a dmr like i have and cut your hand fitting that fing!
Value Rating:1Overall Rating:1

Submitted by Urwin Hamelinna a Downhiller from finland?
Date Reviewed: October 19, 2001
Favorite Trail:kilvey hill
Duration Product Used:6 months
Price Paid: $42.00
Purchased At:A bike shop in worcster
Strengths:its erm ok for street riding
Weaknesses:It doesn't keep the chain On . Its cool for small bumps but if you go though a rock field at speed its straight off if your lucky the chain won't rap it self around your rear wheel and bend (snap off) your rear mech hanger ! I was lucky !
Similar Products Used:I used a super small chain and a top for about week and that was better value for money !
DMR chain thingy good but it takes a bit to set it up !
MRP copy just as cr*ppy as the AC but at least it not trying to be anything good
Bike Setup:Planet X Jack flash(15") judys (100mm) x-lite stem a gay AC chain device wheels oh and formula rear disc !
Bottom Line:Well it doesn't do won't its meant to do and when it buggers up it trys to take the rear mech wheel and general trash your pride and joy !
So thats don't buy this product even if in the bargin bin its in there its Cr*p!

thats -1 silly chili ! this is poo the chain comes off all the time and I'm some jackas* with all the gear and no idea I'm doing an engineering course at uni (3rd yr)
Value Rating:1Overall Rating:5

Submitted by david parkins a Downhiller from lewiston, ID
Date Reviewed: September 19, 2000
Favorite Trail:sand mountain (north Idaho)
Duration Product Used:6 months
Price Paid: $65.00
Purchased At:TNT Bicycles Lewiston, ID
Strengths:Affordable
Weaknesses:Bends a lot, makes lots of noise, when chain does come off, it doesn't go back on without tools.
Similar Products Used:none yet
Bike Setup:Kona Roast, Profile cranks, Rohloff chain, 38t chainring
Bottom Line:I purchased this chain tensioner because it was fairly inexpensive, and it was an AC product. Since then I have had the chain jam itself unrepairable-like twice while raceing. Talk about a stream of cusswords! I have also had problems with chain/pulley angles when in larger gears on the rear cassette.
Removing the lower pulley and adding an old-style chainstay mounted tensioner seemed the only solution to the above problems. I think I will only be happy when I sell it and buy a more expensive one.
Value Rating:3Overall Rating:1

Submitted by ian a Downhiller from scotland
Date Reviewed: September 18, 2000
Favorite Trail:the new 6 minute ft william
Duration Product Used:3 months
Price Paid: $60.00
Purchased At:bikesport, innerliethen
Strengths:Price, looks
Weaknesses:phhbbtt! where do i start, weak, noisy, impossible (seemingly) to secure, dented my peachy new patriot frame!
Similar Products Used:dmr chain cage
Bike Setup:see other review
Bottom Line:I've already reviewed this, and what i said there still goes, sort of. I replaced the top roller with a hacked up dmr chain cage, and wrapped foam and inner tube around the bottom roller, thus quietening things down a bit.
Problem is, the anchor bolts are too short to be effective, so the darn thing kept (past tense, it's in the bin now) rotating into the frame, even locking my suspension out and denting the frame. Having removed everything from it, i now realise how easily it has twisted and bent, then holders for the rollers are all over the shop.
Having looked about, i now reckon you'd be better off buying one of those mrp style rip off things, me: i'm saving for the real thing.
Value Rating:5Overall Rating:1

Submitted by ian a Downhiller from benderloch, scotland
Date Reviewed: September 4, 2000
Favorite Trail:ft william
Duration Product Used:Less than 1 month
Price Paid: $60.00
Purchased At:Bikesport, innerliethen
Strengths:Cheap, simple, looks OK
Weaknesses:Noisy, weak, seemingly impossible to set up right, hits frame
Similar Products Used:dmr chain cage, dcd
Bike Setup:6" patriot, 5" bombers, discs f & r, single 42 tooth ring with 8 speed XT at back
Bottom Line:Hoo boy, i know it's a budget device compared to MRP etc. but this is one thing i will quickly be getting rid of. It seems to have twisted already, the anchor bolts are weak, can't be tightened enough and don't seem to do the job hence my top roller constantly ends up jamming under the swingarm of my patriot. The bottom roller doesn't seem to move, and worst of all, the chain seems to ride up the side of the roller and jams, so not only am i left without pedalling, but in the worst instance i couldn't actually rotate the cranks until i stamped down incredibly hard, thus gouging the (admittedly) lovely gold finishing. It's a shame, because the device is cheap and attractively simple, but unfortunately NOT fit-and-forget.
Value Rating:5Overall Rating:2

Submitted by iain a Downhiller from manchester
Date Reviewed: August 3, 2000
Favorite Trail:sligachan
Duration Product Used:3 months
Strengths:average everything
Weaknesses:I can't set it up right and the frame anchors won't fit
Similar Products Used:dmr speed guide
Bike Setup:azonic rc37s hopes etc
Bottom Line:I don't know about these...maybe I just can't set them up right but the chain keeps coming off under hard pedalling all the time (resulting in many unfortunate injuries to my person but anyway) they are also very noisy, and seem to affect the gears shifting a bit.

If anyone can help me set this thing up better then email me please before I chuck it away and get the roox chain animal!
Value Rating:4Overall Rating:3

Submitted by Mark Littler a Downhiller from Crewe, Cheshir, England
Date Reviewed: March 14, 2000
Favorite Trail:Snowdon
Duration Product Used:3 months
Strengths:Strong, cheap effective
Weaknesses:Noisy unless inertube placed over bottom roller
Similar Products Used:MRP (crap and too hard to set up)
Bike Setup:DH
Bottom Line:It works, its cheap, it looks good and performs well once set up. Its the best one out there so go buy one!!!!!
Value Rating:5Overall Rating:5

Submitted by Harri a Downhiller from Qsamo
Date Reviewed: August 16, 1999
Favorite Trail:
Ruka
Duration Product Used:
3 months
Strengths:
simple,thick
Weaknesses:
its easy to bend theboltsor at least the upper one,which keep the tensioner in right angle,the lower roller doesent seem to spin at all!?
Similar Products Used:
none.
Bike Setup:
Jamis Dakar Pro with dh goodies
Bottom Line:good thingie
Overall Rating:4

Submitted by Scott Meredith a Downhiller from Spokane, WA
Date Reviewed: August 1, 1999
Favorite Trail:
Ride the Runt
Duration Product Used:
3 months
Strengths:
Works Great, simple, easy to mount, and contrary to that other review, CAN work on a full suspension. Works on Everything.
Weaknesses:
Nothing i can think of
Similar Products Used:
Black Spire, Mr. Dirt, Custom, AC Pro Chainguide
Bike Setup:
Jamis Dakar Comp, custom built for DH
Bottom Line:Great for the aspiring DHer, and cheap too. Only 60 bucks.
Overall Rating:5

Submitted by Ben Pinnick a Downhiller from Leeds, UK
Date Reviewed: June 18, 1999
Favorite Trail:
Cheddar DH
Duration Product Used:
less than 1 month
Strengths:
Its cheaper than most, no complex parts to go wrong. Its very effective!! Ive not lost my chain once since fitting it. It also looks (although this is as yet untested) indestructable.
Weaknesses:
It can be a little noisy at the extremes of chain line, but aren't they all? It is only suitable for hardtails
Similar Products Used:
DCD (crap)
MRP Copy (flexy)
Marin/Gleed (good but Noisy)
Bike Setup:
Hardtails only im afraid, Mines on an Azonic DS-1 with a 44T front ring runing, It should fit a 40 - 52 tooth ring though
Bottom Line:Excellent budget chain device that looks way cool, and works 'n' all. Not too haevy either, the perfect slalom choice
Overall Rating:5






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