cranks, bmx and mtb.
#1
ninja
Thread Starter
Join Date: Aug 2005
Location: massachusetts
Posts: 505
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
cranks, bmx and mtb.
are bmx cranks really stronger than mtb cranks?
i need to buy new cranks in a couple months, so i'm just wondering why i see so many bikes at unrealcycles with profile bmx cranks instead of mtb cranks. is there an advantage?
i was just going to get some holzfellers, but read somewhere that bmx cranks are stronger, so just wanted to see what that was all about.
i need to buy new cranks in a couple months, so i'm just wondering why i see so many bikes at unrealcycles with profile bmx cranks instead of mtb cranks. is there an advantage?
i was just going to get some holzfellers, but read somewhere that bmx cranks are stronger, so just wanted to see what that was all about.
#2
Perpetual n00b
Join Date: May 2004
Location: Farmington, NM
Posts: 3,918
Bikes: '18 Kona Explosif, '18 Sunday Primer BMX, Giant Roam (ss converted), Old Peugeot (SS converted, broken)
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 2 Times
in
1 Post
They are stronger as far as I know, but they're also a lot heavier. Which is fine for a DJ/street bike, but for general purpose freeride with maybe a little XC, aluminum cranks and a good bottom bracket should be good enough.
Profiles are probably one of the most durable cranksets around, although one of the DH cranks with ISIS BB might come close.
Profiles are probably one of the most durable cranksets around, although one of the DH cranks with ISIS BB might come close.
#3
Chris King? Chris Bling.
Join Date: Jan 2006
Location: Maine
Posts: 289
Bikes: FMF Pro 2 tube Carbon BMX and Gary Fisher Hoo Koo E Koo
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Profile makes BMX and mountain bike are you sure there the BMX version because profile does BMX racing and mtn biking.
#4
Senior Member
Join Date: Mar 2005
Location: Philadelphia
Posts: 1,036
Bikes: Specialized AWOL, Soma Juice
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I'm not sold on bmx cranks, mainly because I tore through three bottom brackets in like 2 months. They were Euro style, so I guess American would hopefully be stronger. I ended up going with evolve dh cranks with the external bb. A bit heavy but, damn, I love them. So smooth. There's even a few mm chainline adj with the spacers.
#5
Moar cowbell
Join Date: Oct 2004
Location: The 509
Posts: 12,481
Bikes: Bike list is not a resume. Nobody cares.
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Likes: 0
Liked 6 Times
in
5 Posts
BMX cranks are mega-stronger; and heavy too. Most run a soild (or near-solid) BB spindle with a 48-spline BMX pattern. FSA makes one too. The crank arms are hollow chromoly and shaped like an aluminum arm and the BB is a solid 48-spline with three bearings (two on the drive side). But, really, it's overkill unless you're Bender...or weigh 250# and kill everything else. The Holzfeller's should do you fine, or look at the FSA Pounder.
__________________
RST Suspension | Canfield Bikes | 7iDP Protection | Maxxis | Renthal | Hayes | VonZipper Optics | GoPro
Originally Posted by Mark Twain
"Don't argue with stupid people; they will drag you down to their level and then beat you with experience."
#6
Wood Licker
Join Date: Apr 2002
Location: Whistler,BC
Posts: 16,966
Bikes: Trek Fuel EX 8 27.5 +, 2002 Transition Dirtbag, Kona Roast 2002
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 23 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Signifigantly heavier. I have a set of profiles that are insanely heavy. I know they won't break, but holy crap they outweigh any other set I have.
#7
Senior Member
Join Date: Dec 2005
Location: Atlanta, GA
Posts: 1,223
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Definately stronger, and a bit heavier.
To put the weight in perspective, Profile cranks with a euro bb will add about a pound to your ride, that is if you had weenie-light cranks installed at first. Most people that freak out over the weight don't consider that the profile system includes the bb and spindle.
A set of euro bb profiles without the spider or rings weighs about 1100g.
A set of typical MTB crank arms with rings plus a BB weighs in about 900g.
Figure once you add a spider and rings to the profiles, it'll add a little under a pound to your bike.
To put the weight in perspective, Profile cranks with a euro bb will add about a pound to your ride, that is if you had weenie-light cranks installed at first. Most people that freak out over the weight don't consider that the profile system includes the bb and spindle.
A set of euro bb profiles without the spider or rings weighs about 1100g.
A set of typical MTB crank arms with rings plus a BB weighs in about 900g.
Figure once you add a spider and rings to the profiles, it'll add a little under a pound to your bike.