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Bontrager Jones ACX 29er UST

MSRP $
# of Reviews 7
Average Rating 3.57/5
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Submitted by Miker J a Cross Country Rider from PA
Date Reviewed: April 30, 2009
Favorite Trail:Dirt ones
Duration Product Used:1 Year
Strengths:Good all around tire. Good tread pattern. Great as a front tire.
Weaknesses:None if used properly.
Similar Products Used:TNTC
Bike Setup:TNTC
Bottom Line:Great tire up front. I've used it carefully out back but at 190# I've had to baby it a bit. Folks complain that it's sidewalls are thin - well, its a full knobbie with a relatively low weight. You can't get something for nothing. For an all-round set up I've found the DryX (XdX) out back and the ACX up front to be super.

Bonti's TLR rim-tire set up is foolproof on installation and bombproof in function. Their Mustang TLR rim is great. Latterally stiff and holds true very well.

Like a King rear hub, it's a component (Bonti rim-tire setup) I no longer have to think about.
Value Rating:5Overall Rating:5

Submitted by jamesmichael a Cross Country Rider from newbury park
Date Reviewed: April 16, 2009
Favorite Trail:any dry one
Duration Product Used:Less than 1 month
Purchased At:michael's
Strengths:grip,grip,and more grip. I tried Racing Ralph's thought they were great in turns. These run with sealent at 20 psi are even better. I let let it fly. Way too much fun.
Weaknesses:Just put them on, I thought they were way too soft to hold up, but we will see. Make sure the psi is low enough, to much, like all others too bouncy
Similar Products Used:Racing Ralph's
Bike Setup:Sub 25lbs steel hardtail 29er, and loving every ride
Bottom Line:Great tire on the dirt at low psi. If you don't stop to put more air in tires for the ride home on the road it feels like you are riding in a sand pit 6 inches deep. I question the durability of the tires, but that remains to be seen. If they hold up well, I will keep them around. Ardents are the next one to try. But so far these grip way too well to take off for now.
Value Rating:4Overall Rating:4

Submitted by Crockpot2001 a Cross Country Rider from Songdo, Incheon, Korea
Date Reviewed: August 31, 2008
Favorite Trail:Devil's gulch in Wanatchee, WA
Duration Product Used:Less than 1 month
Price Paid: $35.00
Purchased At:Trek Store
Strengths:Great tread, good for loose dirt
Weaknesses:Slashed sidewalls
Similar Products Used:Rampage, Motoraptor, seagaro
Bottom Line:5 km to go in a mostly fireroad MTB race (yup, that's called MTB racing in Korea). White spooge started flinging everywhere at 60 KPH. Sidewall sliced like cheese. Never will buy this tire again.
Value Rating:2Overall Rating:1

Submitted by mudslinger21 a Weekend Warrior from MoVal, CA, US
Date Reviewed: August 26, 2008
Duration Product Used:3 months
Strengths:Light, smooth, Fast rolling
Weaknesses:thin casing, price $44 each
Bike Setup:Stock 2008 Paragon
Bottom Line:Great grip as a rear tire, front tire little loose during cornering. Would not use over sharp rocks they will slice or puncture. But for dirt trails the are great. They also work great with stans tubeless setup.
Value Rating:3Overall Rating:4

Submitted by Mike a Weekend Warrior from Frederick, MD, Frederick
Date Reviewed: May 22, 2008
Favorite Trail:Every Trail in the Shed
Duration Product Used:3 months
Strengths:Great tread pattern. Has great tracktion in wet and muddy conditions.
Weaknesses:Side walls. I tore two rear sidewalls. These are not good for rocky conditions
Similar Products Used:Hutchinson Python UST
Bike Setup:08 GF Paragon w/ Mavic C29SSMAX
Bottom Line:Depends on the conditions you ride in
Value Rating:2Overall Rating:1

Submitted by Paul a Racer from Upland, CA
Date Reviewed: April 28, 2008
Favorite Trail:Thunder Mountain, UT
Duration Product Used:6 months
Price Paid: $40.00
Purchased At:Coates
Strengths:sticks well in the loose dry stuff and hardpack. Good cornering and grabs on hard uphill acceleration. Treadwear is great. Only raced on it one time, first place.
Weaknesses:thin sidewalls. easily sliced up.
Similar Products Used:As far as 29'er go only Kenda's that were not UST.
Bike Setup:Kona Kula 2-9, Juicy Ultimates, full XTR, Reba up front, Bonty race x lite, Titec Hellbent
Bottom Line:All around great tire, reliable and predictable.
Value Rating:5Overall Rating:5

Submitted by matt a Cross Country Rider from sticks o' philly...pa
Date Reviewed: February 28, 2008
Favorite Trail:french creek
Duration Product Used:3 months
Purchased At:Bike Line of Ptown
Strengths:Light, Way grippy, tubeless, rolls smoofly
Weaknesses:maybe sidewall

Similar Products Used:kendas, wtbs, and other bonty rubber
Bike Setup:29 ferrous, fox, juicy 7, bonty post,stem, and whls...1x1
Bottom Line:great tire, grabs the corners coming down and digs in on the way up...try it if you wanna stay moving with no worries
Value Rating:5Overall Rating:5






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