Rear Derailleur??

[Tom Norton]

Posted on Facebook but thought I might inquiry here!
My 1983 Schwinn Super le Tour 650b conversion needs a more " classic" looking RD. I am running an 8 speed cassette.
Thoughts?
Thanks!

[Steve Palincsar]

Classical enough for you?

-- 
Steve Palincsar
Alexandria, Virginia 
USA

[mitch....@gmail.com]

Search eBay for Schwinn derailleur and you'll find a lot of Schwinn "approved" and labeled SunTours and Shimanos that work fine for friction shifting. 

--Mitch

[William Lindsay]

The ultimate 1983 rear derailleur might be a sun tour cyclone mk II.

Bill Lindsay
El Cerrito Ca.

[John Roberts]

+1 on the SunTour Cyclone. I just sold one on the bay actually... they're beautiful, light, and shift relatively well.

[Tom Norton]

Will they handle an 8 speed cassette?

[Steve Frey]

Unfortunately a Suntour Cyclone Mk II doesn't work with 8 speed.

[Harold Bielstein]

Frik Shun!

Sent from Hal's iPad

On Oct 14, 2017, at 7:08 PM, Steve Frey <steveja...@gmail.com> wrote:

Unfortunately a Suntour Cyclone Mk II doesn't work with 8 speed.

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[Steve Palincsar]

Perhaps Steve is saying a Cyclone Mk II won't reach to 8 speeds?  None of the Cyclones ever indexed, as far as I know, so they're all friction.

On 10/14/2017 09:14 PM, Harold Bielstein wrote:

Frik Shun!

Sent from Hal's iPad

On Oct 14, 2017, at 7:08 PM, Steve Frey <steveja...@gmail.com> wrote:

Unfortunately a Suntour Cyclone Mk II doesn't work with 8 speed.

-- 
Steve Palincsar
Alexandria, Virginia 
USA

[Steve Frey]

That's correct. It doesn't have the range to reach across an 8 speed cassette. Almost, but not quite.

[William Lindsay]

A1983 bike that is trying to look classic should not have an 8- speed cassette. Choose modern or choose retro.

[Samuel McCune]

As others have said, I'm a big fan of the Suntour Cyclone MK II in both the standard and GT flavors and currently run 7spd cassette on 8-10 speed hubs to use them.

The other alternative is not cheap, but you could go for a 1990's Suntour Superbe Pro. The later models of the Superbe Pro play nice with 8s. This is assuming you are okay with a max rear cog of 26 and a front chainring jump of 16t or less.

Here's the velobase record:
http://velobase.com/ViewComponent.aspx?ID=f5faf231-c193-46a4-8e5b-e498bd83784e&Enum=108

Here's one on eBay (no relation to the seller):
https://www.ebay.com/p/Suntour-SUPERBE-Pro-8-Speed-Rear-Derailleur-Vintage-Road-Bike-Parts/1723870773

Hope this helps,

Samuel McCune
New Haven, CT

[satanas]

A Dura-Ace 7402 (but definitely not 7400 and maybe not 7401) would be fine, as would 7700, or the equivalent Ultegra RDs. 6 & 7 speed RDs are best avoided as they might not have enough throw; Huret's Jubilee definitely does not. The last Superbe Pro RDs were 8 speed capable too, as are most post 1990 (8/9/10/11) Campagnolo mechs.

There are plenty of functional choices; it depends on what you're trying to achieve. 1983 and 8 speeds are an anachronism though; Dura-Ace 8 speed was only announced at the 1989 trade shows...

Later,
Stephen

[Brad]

The Cyclone MK-II has a relatively short paralleogram.
I would look for the 3040 Accushift. 
I have one each on two different bikes and it shifts sweetly.
Suntour derailleurs did get better with each iteration generally- I put an older one on (which was a great leap forward in the 1970
s from a Simplex)  and there were issues which the newer model resolved.

[roda...@gmail.com]

> Unfortunately a Suntour Cyclone Mk II doesn't work with 8 speed.

I've been using the Cyclone Mk II on 9-speed for some time. Shifting with SunTour Power Shifters, I reach all nine cogs with no trouble.

-Robert

[Gerhard Kohl]

And here is a picture showing of my setup with a 8 speed cassette

[Gerhard Kohl]

That is not true. I ride a Suntour Cyclone MK2 and it works flawlessly with 8 speed cassettes and a Suntour friction shift shifter.

[Joel Niemi]

My Cyclone Mk 1 shifts 9 cogs with friction downtube
Joel Niemi- Snohomish Washington

[mitch....@gmail.com]

Add me to the list of people using a Cyclone MkII across the entire width of 8sp cassette.

I find despite their long-cage appearance the MkII is very sensitive about largest cog and needs a 28t largest. If others are using the Cyclone MkII with 30 or 32t let me know and I'll have another look.

--Mitch

[Reed Kennedy]

On Sat, Oct 14, 2017 at 7:11 PM, Steve Frey <steveja...@gmail.com> wrote:

That's correct. It doesn't have the range to reach across an 8 speed cassette. Almost, but not quite.

Huh. Really?

My Cyclone Mk1 is shifting 10 speeds (12-30 Ultegra 6700 cassette) with Simplex shifters on my Fitz custom. Works a treat! 

Best,

Reed

 

On Saturday, October 14, 2017 at 6:47:39 PM UTC-7, Steve Palincsar wrote:

Perhaps Steve is saying a Cyclone Mk II won't reach to 8 speeds?  None of the Cyclones ever indexed, as far as I know, so they're all friction.

On 10/14/2017 09:14 PM, Harold Bielstein wrote:

Frik Shun!

Sent from Hal's iPad

On Oct 14, 2017, at 7:08 PM, Steve Frey <steveja...@gmail.com> wrote:

Unfortunately a Suntour Cyclone Mk II doesn't work with 8 speed.

-- 
Steve Palincsar
Alexandria, Virginia 
USA

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[Robert Tedge]

How about a brand new Sun XCD? I have one i am selling if you are interested?

[Tom Norton]

Well I found something, a Shimano STX RD. Mostly shiny but it has a bit of black chrome. Will do for now.

[Ken Freeman]

What about if you shorten the limit screws?

[Kevin Butz]

Very late to the thread, but agree with Gerhard running an 8 on Specialized Sequoia with Cyclone MK2. Took a bit of tweaking, but works. Would be tempted as Joel said in the next post 9 would also work as 8/9/10 width should be the same.

[BenGeldreich]

Hey Reed,

Do you think your Suntour Cyclone MK1 would shift with a 11-34 10 speed cassette? Any room left or is it at it's max with the 30? I ask cause I installed an 11-34 cassette with friction shifters and am running a Suntour Cyclone Mk1 front derailleur and would love to get the rear to match. 

Thanks

Ben

On Monday, October 16, 2017 at 4:09:10 PM UTC-7, Reed Idlewild wrote:

On Sat, Oct 14, 2017 at 7:11 PM, Steve Frey <steveja...@gmail.com> wrote:

That's correct. It doesn't have the range to reach across an 8 speed cassette. Almost, but not quite.

Huh. Really?

My Cyclone Mk1 is shifting 10 speeds (12-30 Ultegra 6700 cassette) with Simplex shifters on my Fitz custom. Works a treat! 

Best,

Reed

 

On Saturday, October 14, 2017 at 6:47:39 PM UTC-7, Steve Palincsar wrote:

Perhaps Steve is saying a Cyclone Mk II won't reach to 8 speeds?  None of the Cyclones ever indexed, as far as I know, so they're all friction.

On 10/14/2017 09:14 PM, Harold Bielstein wrote:

Frik Shun!

Sent from Hal's iPad

On Oct 14, 2017, at 7:08 PM, Steve Frey <steveja...@gmail.com> wrote:

Unfortunately a Suntour Cyclone Mk II doesn't work with 8 speed.

-- 
Steve Palincsar
Alexandria, Virginia 
USA

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[satanas]

A 34T cog shouldn't be any problem; we used to fit Cyclone v1 RDs with 14-34 5 speed freewheels frequently back in the day. Whether it will have enough inward travel is another matter, and may depend also on the dropout thickness, etc.

Later,
Stephen