Truvativ Isoflow 3.1 Crankset

3.44/5 (9 Reviews)


Product Description

  • AL-7075 outer ring / Steel inner rings
  • Square Taper / Power Spline interface
  • Lengths: 160 mm, 165 mm, 170 mm, 175 mm


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Reviews 1 - 9 (9 Reviews Total)

User Reviews

Overall Rating:3
Value Rating:4
Submitted by bob a Cross Country Rider

Date Reviewed: November 1, 2012

Strengths:    cost and last long long time

Weaknesses:    none

Bottom Line:   
great value

Expand full review >>

Favorite Trail:   Hawes

Duration Product Used:   long long time

Purchased At:   can't remember

Bike Setup:   2004 Giant Yukon, 9 speed; chainrigns 22, 32, & 42; arm 175mm

Overall Rating:5
Value Rating:5
Submitted by Vuco a Weekend Warrior from Zagreb

Date Reviewed: December 11, 2011

Strengths:    cheap, durable, trouble free, had it 3 years on 2 different bikes without any problems

Weaknesses:    nothing really

Bottom Line:   
Got this crankset and BB with my first HT bike almost 4 years ago.

Since then I rode it 6000km of hard ascents and descents. I've jumped on it, ridden it hard. Hadn't made a creak. Changed pedals, never cleaned the BB (except one time when I moved it from my HT to my FS bike). BB still rotates like new.

If I was picky, I'd say that after 6000km of off road trips, the middle ring was a little warped (is it a good word ?) since I've hit it several times onto rocks and tree logs. But the biggest ring is in perfect condition :D (don't know how I did it).

It's the cheapest Truvativ crankset. Never really hoped it would last that long after such an abuse.

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Favorite Trail:   Medvednica, Sljeme

Duration Product Used:   More than 3 years

Purchased At:   Came with the bike

Similar Products Used:   Deore M590 crankset replaced it

Bike Setup:   Focus Thunder 130mm FS bike, Fox 36 Float RC2 140mm, Formula RX brakes, Deore shifters, Deore/XT fron/rear mech, deore cassette and chain, superstar AM/enduro Wheelset

Overall Rating:2
Value Rating:3
Submitted by Drew69 a Weekend Warrior from Gainesville, Florida

Date Reviewed: April 1, 2011

Strengths:    None that I can think of, I suppose its inexpensive, it came stock on my $350 bike.

Weaknesses:    Chain ring mounting points are susceptible to bending.

Bottom Line:   
I would not recommend this crank. I swapped my bent one out for middleburn rs-7s.

Expand full review >>

Favorite Trail:   San Felasco

Duration Product Used:   2 Years

Similar Products Used:   shimano 105 5600 double, if you want to call that similar.

Bike Setup:   Motobecane Outcast 29 SS

Overall Rating:4
Value Rating:4
Submitted by suganumayuuji a Weekend Warrior from PJ, malaysia

Date Reviewed: August 16, 2010

Strengths:    Strong strong strong....

Weaknesses:    NONEE!!!!!

Bottom Line:   
I've used it for dirt jumps, 6 feet to flat drops, rocks, bashing and it just doesn't seem to give up.

Expand full review >>

Favorite Trail:   kiara

Duration Product Used:   6 months

Purchased At:   came with the bike.


Overall Rating:5
Value Rating:5
Submitted by DHmonkey123 a Cross Country Rider from San Anselmo, California, USA

Date Reviewed: July 3, 2010

Strengths:    Light, Durable, don't bend

Weaknesses:    none

Bottom Line:   
Very strong, light XC crankset. definitely worth paying money for. very smooth shifting.

Expand full review >>

Favorite Trail:   Tamarancho

Duration Product Used:   6 months

Purchased At:   came on bike

Similar Products Used:   none

Bike Setup:   Cannondale F400

Overall Rating:3
Value Rating:4
Submitted by csmac2004 a Cross Country Rider from Kamloops, BC

Date Reviewed: May 19, 2010

Strengths:    Strong, good size

Weaknesses:    Tapered walls flared after two re-installs

Bottom Line:   
Good crank for the money. Quick shifts, and easy to set up. After installing this, however, on my 2nd bike, the tapered walls have begun to flare out already. I have to use loc-tite on the bolts, or the crank works it's way off! However, for durability, these cranks are well worth the money.

Expand full review >>

Duration Product Used:   2 Years

Price Paid:    $60.00

Purchased At:   Park Cycle

Similar Products Used:   Shimano cheapo cranks up to XT

Bike Setup:   Shimano Altus drivetrain on a Cannondale F8 hardtail

Overall Rating:3
Value Rating:4
Submitted by GiantClyde01 a Weekend Warrior from Lubbock,TX,USA

Date Reviewed: April 19, 2010

Strengths:    Solid, No issues to report.

Weaknesses:    Replaceable chainrings would be nice, but at this pricepoint it will never happen.

Bottom Line:   
I am a clydesdale at 280 lbs. The only reason I had to replace them is because I bent the chainrings in a pretty bad crash. (7 months later and I still don't have a toe-nail on my left big toe!!). If they stood up to me, they will stand up to you.

Expand full review >>

Favorite Trail:   Palo duro canyon

Duration Product Used:   2 Years

Price Paid:    $40.00

Purchased At:   DFC cycles and fitne

Similar Products Used:   sr suntour and Low end shimano stuff

Bike Setup:   2008 giant yukon, just upgraded stuff as I bust it up.

Overall Rating:3
Value Rating:4
Submitted by TxHoss a Weekend Warrior from Lubbock, TX

Date Reviewed: April 19, 2010

Strengths:    Held up to my 280lb Butt. No Issues have surfaced So Far.

Weaknesses:    It would be nice if the chainrings were replaceable, but at this price point, who cares.

Bottom Line:   
This crank has held up to 2 years of trail and street riding with my big butt mashing on them. Finally bent them in a crash. If the middle chainring was replaceable I wouldn't even have had to replace them. I call that $40 worth!!

Expand full review >>

Favorite Trail:   Palo Duro canyon

Duration Product Used:   2 Years

Price Paid:    $40.00

Purchased At:   DFC cycles and fitne

Similar Products Used:   Lots of shimano's low end stuff, Sr suntour.

Bike Setup:   2008 Giant Yukon. Just upgraded stuff I have broken.

Overall Rating:3
Value Rating:4
Submitted by Jack a Cross Country Rider from Maine

Date Reviewed: April 16, 2010

Strengths:    Quiet, smooth shifting low-budget triple-ring crankset.

Weaknesses:    None so far

Bottom Line:   
Does what it's supposed to do with no perceptible weaknesses. Nothing to look at but its a low-budget crankset. Good for entry-level set-ups or as an inexpensive replacement for a damaged crankset.

Expand full review >>

Duration Product Used:   6 months

Bike Setup:   530 Reynolds steel frame, Shimano 9-speed 105 components, Tektro 538 brakes, Shimano 500 wheels, Kenda Kwest tires

Reviews 1 - 9 (9 Reviews Total)

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