Suntour Cyclone FD on a Triple
#1
PanGalacticGargleBlaster
Thread Starter
Join Date: Apr 2009
Location: Smugglers Notch, Vermont
Posts: 7,531
Bikes: Upright and Recumbent....too many to list, mostly Vintage.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Likes: 0
Liked 5 Times
in
4 Posts
Suntour Cyclone FD on a Triple
I'm considering putting a triple crankset on my Raleigh. I'm currenly using a 1st gen. Suntour Cyclone FD on a double crankset, are there any concerns I should have with switching over to a triple?
#2
Stop reading my posts!
Join Date: Sep 2004
Posts: 12,584
Mentioned: 90 Post(s)
Tagged: 0 Thread(s)
Quoted: 1443 Post(s)
Liked 1,062 Times
in
787 Posts
it's rated for a maximum tooth difference of 18 teeth, so that could be the limitation. Velobase says that the 2nd generation Cyclones have been used with triples, but don't say that about the first gen., however I think it might work as long as you stay close to a 18t difference.
#3
PanGalacticGargleBlaster
Thread Starter
Join Date: Apr 2009
Location: Smugglers Notch, Vermont
Posts: 7,531
Bikes: Upright and Recumbent....too many to list, mostly Vintage.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Likes: 0
Liked 5 Times
in
4 Posts
18t difference between the Big and Small chainwheel?
So I should be able to get away with a 52-34?
That would solve my problems both personal and scientific. Thank you!
So I should be able to get away with a 52-34?
That would solve my problems both personal and scientific. Thank you!
#4
Senior Member
First gen. Cyclone derailler with triple SR Apex 52-47-34 Crankset. OEM on 1981 Miyata 1000.
No Problemo...........
2Fer
No Problemo...........
2Fer
#5
)) <> ((
will probably work. the only problem i could see is if your BB is too long and the reach out to the big ring is too much.
#6
Senior Member
Join Date: Dec 2005
Posts: 17,158
Mentioned: 481 Post(s)
Tagged: 0 Thread(s)
Quoted: 3810 Post(s)
Liked 6,699 Times
in
2,611 Posts
I've used Gen. 1 Cyclone FDs on compact doubles, and, iirc, they worked fine, i.e., the cage is long enough so that the chain will clear when it's in the small ring on the front and one of the smaller rings on the rear. But my usual back-up is to use an 80s MTB FD with a 28.6mm clamp, e.g., Deore LX or SunTour Mountech. Those were designed for triples.
Neal
Neal
#7
Fuji Fan
#8
Cat 6
Join Date: Dec 2007
Location: Mountain Brook, AL
Posts: 7,482
Mentioned: 27 Post(s)
Tagged: 0 Thread(s)
Quoted: 500 Post(s)
Liked 183 Times
in
118 Posts
I'm running a 52/34 double on my BF acquired Ranson (thx Business810) with a Cyclone FD - endless band style. Works flawlessly.
__________________
72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff
72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff
#9
Dropped
The issue would be on a triple with a difference greater than 10 teeth between the middle and the outer chainring. Actually, they perform better with half step triples with about half that difference. I've used a second generation Cyclone on a 52-42-30 setup and it worked, but it was rough sometimes from the 30 to the 42. The problem doesn't occur on a compact double because when upshifting to the large chainring the chain makes positive contact with the 'meat' of the inner cage plate. From something like a 30 small to 42 middle, the narrow end of the FD cage is doing all the work. That's why modern road and MTB triple FDs have such deep inner plate designs - and why I use them if I have the choice.
Thread
Thread Starter
Forum
Replies
Last Post
zoo mob
Bicycle Mechanics
3
08-30-10 08:15 PM
corkscrew
Classic & Vintage
6
03-17-10 10:37 AM