Noob Mechanic: Re 7 spd FWheel and Derailleur Compatibility

Sheldon Brown wrote:
xkred27 wrote: snip
3) Am I going to need a special puller to work on the freewheel?
Yes. Not all that special, actually, it's the most common type.
The Park FR-1 shown at http://sheldonbrown.com/harris/tools.html#freewh-
eelhttp://sheldonbrown.com/harris/tools.html#freewheel would be the
correct unit.
snip

While the FR1 is the proper tool, I'd heard the FR-5 also can take of
Shimano freewheels. Anyone know if the FR-5 will achieve the result? I
so, is there a concern of breaking/stripping something using a nearfi
tool? I've got 3-6 mounted Shimano freewheels so if not I'll need pic
up an FR-1 sooner or later


-

dianne_1234 wrote:


Not SGS. SGS is only a Shimano designation. You have a SunTour
derailleur.

Even though it's a Suntour, don't I still need to determine whether it's
"wide range", "medium range", or "short range"? If so, how? Is the
~90mm distance between the pulley bolts still a valid determinant? If
so, where does the 86mm I measured between the pulley bolts on my
Suntour place it?

Thanks.

Peter

Anti-spam:
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dianne_1234 wrote:


Not SGS. SGS is only a Shimano designation. You have a SunTour
derailleur.

Even though it's a Suntour, don't I still need to determine whether it's
"wide range", "medium range", or "short range"? If so, how? Is the
~90mm distance between the pulley bolts still a valid determinant? If
so, where does the 86mm I measured between the pulley bolts on my
Suntour place it?

Thanks.

Peter

Anti-spam:
a) Remove NS_
b) Change 108 to cds1

A Muzi wrote:

So how far between pulley bolts?
About 86mm
And what are you trying to do here?

Yeah, I think I've lost my thread here. I'm kind of a Usenet noob on
top of being a biketech noob. In short, I have a ~1992 Bianchi
Boardwalk I want to use to learn bike mechanics. First order of biz is
I want to swap out current Shimano HG-37 7 spd freewheel for a Shimano
Mega Range 11-34 7 spd freewheel. I have Suntour shifters and
derailleurs, and simply wanted to know if the 11-34 megarange would
work. Consensus was that it would work, so long as the RD was
"wide-range". So I was asking how I could tell if my RD was
"wide-range". Out of ignorance, I used the term "SGS" for wide-range,
thinking the terms were interchangeable. And that's where you and I
miscommunicated a bit. I *also* plan to swap out the Suntour shifters
for a pair of Shimano 7 spd Shimano STX/Alivio SL-MC40 RapidFire pods.

Bottom line: I want, at minimum, to replace the Shimano HG-37 7 spd
freewheel with the Shimano Mega Range 7 spd 11-34 freewheel. And if
possible, I'd like to add the Shimano shifters mentioned above. And
probably a chain. I don't want to change the derailleurs--mostly for
money reasons--at this point.

Do-able?

Thanks again.

Peter

Anti-spam:
a) Remove NS_
b) Replace 108 with cds1

A Muzi wrote:

So how far between pulley bolts?
About 86mm
And what are you trying to do here?

Yeah, I think I've lost my thread here. I'm kind of a Usenet noob on
top of being a biketech noob. In short, I have a ~1992 Bianchi
Boardwalk I want to use to learn bike mechanics. First order of biz is
I want to swap out current Shimano HG-37 7 spd freewheel for a Shimano
Mega Range 11-34 7 spd freewheel. I have Suntour shifters and
derailleurs, and simply wanted to know if the 11-34 megarange would
work. Consensus was that it would work, so long as the RD was
"wide-range". So I was asking how I could tell if my RD was
"wide-range". Out of ignorance, I used the term "SGS" for wide-range,
thinking the terms were interchangeable. And that's where you and I
miscommunicated a bit. I *also* plan to swap out the Suntour shifters
for a pair of Shimano 7 spd Shimano STX/Alivio SL-MC40 RapidFire pods.

Bottom line: I want, at minimum, to replace the Shimano HG-37 7 spd
freewheel with the Shimano Mega Range 7 spd 11-34 freewheel. And if
possible, I'd like to add the Shimano shifters mentioned above. And
probably a chain. I don't want to change the derailleurs--mostly for
money reasons--at this point.

Do-able?

Thanks again.

Peter

Anti-spam:
a) Remove NS_
b) Replace 108 with cds1

dianne_1234 wrote:
Not SGS. SGS is only a Shimano designation. You have a SunTour
derailleur.

xkred27 wrote:
Even though it's a Suntour, don't I still need to determine whether it's
"wide range", "medium range", or "short range"? If so, how? Is the
~90mm distance between the pulley bolts still a valid determinant? If
so, where does the 86mm I measured between the pulley bolts on my
Suntour place it?

That's pretty darn wide range.
Now, what do you want to do with it?

Your changer is rated to 34 teeth.

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

dianne_1234 wrote:
Not SGS. SGS is only a Shimano designation. You have a SunTour
derailleur.

xkred27 wrote:
Even though it's a Suntour, don't I still need to determine whether it's
"wide range", "medium range", or "short range"? If so, how? Is the
~90mm distance between the pulley bolts still a valid determinant? If
so, where does the 86mm I measured between the pulley bolts on my
Suntour place it?

That's pretty darn wide range.
Now, what do you want to do with it?

Your changer is rated to 34 teeth.

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

A Muzi wrote:
So how far between pulley bolts?
And what are you trying to do here?

xkred27 wrote:
86mm. Yeah, I think I've lost my thread here. I'm kind of a Usenet noob on
top of being a biketech noob. In short, I have a ~1992 Bianchi
Boardwalk I want to use to learn bike mechanics. First order of biz is
I want to swap out current Shimano HG-37 7 spd freewheel for a Shimano
Mega Range 11-34 7 spd freewheel. I have Suntour shifters and
derailleurs, and simply wanted to know if the 11-34 megarange would
work. Consensus was that it would work, so long as the RD was
"wide-range". So I was asking how I could tell if my RD was
"wide-range". Out of ignorance, I used the term "SGS" for wide-range,
thinking the terms were interchangeable. And that's where you and I
miscommunicated a bit. I *also* plan to swap out the Suntour shifters
for a pair of Shimano 7 spd Shimano STX/Alivio SL-MC40 RapidFire pods.

Bottom line: I want, at minimum, to replace the Shimano HG-37 7 spd
freewheel with the Shimano Mega Range 7 spd 11-34 freewheel. And if
possible, I'd like to add the Shimano shifters mentioned above. And
probably a chain. I don't want to change the derailleurs--mostly for
money reasons--at this point.

Yes it will shift a MegaRange with friction shifters. It
won't properly index with RapisFire. So add to your
shopping list an SIS compatible changer ($15 up)

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

A Muzi wrote:
So how far between pulley bolts?
And what are you trying to do here?

xkred27 wrote:
86mm. Yeah, I think I've lost my thread here. I'm kind of a Usenet noob on
top of being a biketech noob. In short, I have a ~1992 Bianchi
Boardwalk I want to use to learn bike mechanics. First order of biz is
I want to swap out current Shimano HG-37 7 spd freewheel for a Shimano
Mega Range 11-34 7 spd freewheel. I have Suntour shifters and
derailleurs, and simply wanted to know if the 11-34 megarange would
work. Consensus was that it would work, so long as the RD was
"wide-range". So I was asking how I could tell if my RD was
"wide-range". Out of ignorance, I used the term "SGS" for wide-range,
thinking the terms were interchangeable. And that's where you and I
miscommunicated a bit. I *also* plan to swap out the Suntour shifters
for a pair of Shimano 7 spd Shimano STX/Alivio SL-MC40 RapidFire pods.

Bottom line: I want, at minimum, to replace the Shimano HG-37 7 spd
freewheel with the Shimano Mega Range 7 spd 11-34 freewheel. And if
possible, I'd like to add the Shimano shifters mentioned above. And
probably a chain. I don't want to change the derailleurs--mostly for
money reasons--at this point.

Yes it will shift a MegaRange with friction shifters. It
won't properly index with RapisFire. So add to your
shopping list an SIS compatible changer ($15 up)

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971