Question: 27" to 700c ...

TomCAt said:

I have an old trek touring/sports bicycle. It is in great shape. One
problem, the wheels are 27".

Not a problem if the wheels are in decent shape, you can still purchase
nice 27" tires online. Albeit the selection is sparse.

Quoted message said:

Can I put on 700c's. What about the brake reaching. Is there a brake
that reaches a little further than normal? ]

You should be able to drop the brake shoes in your existing calipers to
to make it work.

Quoted message said:

What is the actual difference in size from 27" to 700c.

About 4mm

In article <[email hidden]>,

maxo said:

TomCAt said:

I have an old trek touring/sports bicycle. It is in great shape. One
problem, the wheels are 27".

Not a problem if the wheels are in decent shape, you can still purchase
nice 27" tires online. Albeit the selection is sparse.

Online? Most department stores sell cheap but serviceable 27" tires. On
this continent, it's the size that won't die.

When I lost a 27" rim to a crash a few years ago, the bike shop slapped
in a replacement rear wheel for C$40. I think they had it in stock.

Quoted message said:

Quoted message said:

Can I put on 700c's. What about the brake reaching. Is there a brake
that reaches a little further than normal? ]

You should be able to drop the brake shoes in your existing calipers to
to make it work.

If not, long reach calipers are probably the way to go. Tektro makes
some nice ones, which Sheldon sells, and they are also available from
Nashbar as a house-branded component.

Quoted message said:

Quoted message said:

What is the actual difference in size from 27" to 700c.

About 4mm

Share & Enjoy,

--
Ryan Cousineau [email hidden] http://www.wiredcola.com/
"I don't want kids who are thinking about going into mathematics
to think that they have to take drugs to succeed." -Paul Erdos

Ryan Cousineau said:

Online? Most department stores sell cheap but serviceable 27" tires. On
this continent, it's the size that won't die.

The Xmarts around here stopped stocking them a while back and when they
did, they were not-too-supple crappy gumwalls. The LBS's usually stock a
token tire in this size, but not a variety--that's why I recommended
going on-line.

🙂

Nashbar has their house-brand 27" tire on sale for 8 bucks. I believe
they're "Cheng Shen" made--but so are their cheapie Primas--and they're
fine, at least better than department store tires at half the price.

Quoted message said:

When I lost a 27" rim to a crash a few years ago, the bike shop slapped
in a replacement rear wheel for C$40. I think they had it in stock.

Quoted message said:

Quoted message said:

Can I put on 700c's. What about the brake reaching. Is there a
brake that reaches a little further than normal? ]

You should be able to drop the brake shoes in your existing calipers to
to make it work.

If not, long reach calipers are probably the way to go. Tektro makes
some nice ones, which Sheldon sells, and they are also available from
Nashbar as a house-branded component.

Make sure those calipers aren't "recessed bolt" style if you're mounting
them in an older frame that takes an exterior nut. There's a workaround,
but I'd just file the brake shoe mounting slot if it's just a matter of a
millimeter.

In article <[email hidden]>,

maxo said:

Ryan Cousineau said:

Online? Most department stores sell cheap but serviceable 27" tires. On
this continent, it's the size that won't die.

The Xmarts around here stopped stocking them a while back and when they
did, they were not-too-supple crappy gumwalls. The LBS's usually stock a
token tire in this size, but not a variety--that's why I recommended
going on-line.

🙂

Nashbar has their house-brand 27" tire on sale for 8 bucks. I believe
they're "Cheng Shen" made--but so are their cheapie Primas--and they're
fine, at least better than department store tires at half the price.

Quoted message said:

When I lost a 27" rim to a crash a few years ago, the bike shop slapped
in a replacement rear wheel for C$40. I think they had it in stock.

Quoted message said:

> Can I put on 700c's. What about the brake reaching. Is there a
> brake that reaches a little further than normal? ]

You should be able to drop the brake shoes in your existing calipers to
to make it work.

If not, long reach calipers are probably the way to go. Tektro makes
some nice ones, which Sheldon sells, and they are also available from
Nashbar as a house-branded component.

Make sure those calipers aren't "recessed bolt" style if you're mounting
them in an older frame that takes an exterior nut. There's a workaround,
but I'd just file the brake shoe mounting slot if it's just a matter of a
millimeter.

Another near-miss technique is to use spherical mounting hardware
(mountain bike brake pads, basically), and angle the pads down. This is
probably bad for pad longevity, but it can gain you a few more mm in a
pinch.

--
Ryan Cousineau [email hidden] http://www.wiredcola.com/
"I don't want kids who are thinking about going into mathematics
to think that they have to take drugs to succeed." -Paul Erdos

I made the conversion with no problems -- I just changed the brake calipers
to long-reach style -- purchased the Nashbar ones and they work and look
great! Just make sure that your rear frame spacing will accomodate the 700
cm wheel hub.
"Ryan Cousineau" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

In article <[email hidden]>,

maxo said:

Ryan Cousineau said:

Online? Most department stores sell cheap but serviceable 27" tires.

On

Quoted message said:

Quoted message said:

Quoted message said:

this continent, it's the size that won't die.

The Xmarts around here stopped stocking them a while back and when they
did, they were not-too-supple crappy gumwalls. The LBS's usually stock a
token tire in this size, but not a variety--that's why I recommended
going on-line.

🙂

Nashbar has their house-brand 27" tire on sale for 8 bucks. I believe
they're "Cheng Shen" made--but so are their cheapie Primas--and they're
fine, at least better than department store tires at half the price.

Quoted message said:

When I lost a 27" rim to a crash a few years ago, the bike shop

slapped

Quoted message said:

Quoted message said:

Quoted message said:

in a replacement rear wheel for C$40. I think they had it in stock.

> > Can I put on 700c's. What about the brake reaching. Is there a
> > brake that reaches a little further than normal? ]
>
> You should be able to drop the brake shoes in your existing calipers

to

Quoted message said:

Quoted message said:

Quoted message said:

> to make it work.

If not, long reach calipers are probably the way to go. Tektro makes
some nice ones, which Sheldon sells, and they are also available from
Nashbar as a house-branded component.

Make sure those calipers aren't "recessed bolt" style if you're mounting
them in an older frame that takes an exterior nut. There's a workaround,
but I'd just file the brake shoe mounting slot if it's just a matter of

a

Quoted message said:

Quoted message said:

millimeter.

Another near-miss technique is to use spherical mounting hardware
(mountain bike brake pads, basically), and angle the pads down. This is
probably bad for pad longevity, but it can gain you a few more mm in a
pinch.

--
Ryan Cousineau [email hidden] http://www.wiredcola.com/
"I don't want kids who are thinking about going into mathematics
to think that they have to take drugs to succeed." -Paul Erdos

TonyKiz said:

I just changed the brake
calipers to long-reach style -- purchased the Nashbar ones

Are they recessed bolt or can you fit them on an older frame w/o too many
hassles?

"maxo" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

On Sat, 13 Aug 2005 17:58:22 +0000, Ryan Cousineau wrote:

Nashbar has their house-brand 27" tire on sale for 8 bucks.

I believe

Quoted message said:

they're "Cheng Shen" made--but so are their cheapie

Primas--and they're

Quoted message said:

fine, at least better than department store tires at half

the price.

Quoted message said:

Some local shops (Chicago) carry a nicer model or two (IRC or
Conti TT 2000).

Here's what Harris Cyclery (Sheldon Brown's day job) has
available.
This is probably as good a selection as you will find
anywhere:
http://www.sheldonbrown.com/harris/tires/630.html

If this bike is being used for urban commuting (rough
pavement, glass, etc.) there's no comparison between a Conti
TT 2000 and a cheap department store tire.

Just FYI, Harris (known more for selection and service than
price) has the Conti TT 2000 for $34.95. On another thread,
this tire (in 700 size) is on sale at Supergo for $18. That's
a good price, but note their "regular price" is $53!!

(I have no connection with Harris other than the usual
admiration for Sheldon Brown's web site.)

Answering my own post::::::::::::::::::::::

I checked the Nashbar brakes. Sweet. Nashbar says they will reach.

So now.. I am going to bring the Trek to the local bicycle thieves OOOPS,
I mean bicycle shop ....

I will have them put on a 700c wheel just for fit purposes.

One problem ... the rear is set for 5 or 6 cogs ... I need to go down in
the cellar and check. What about the spacing?

Maybe I can pull out the frame a bit.

What do ya think ..

I live in southern NH... maybe I will take a ride to Newton, MASS and have
Harris do the change-over.

There are NO bicycle shops around here that are worth a [censored].

All they want is to sell you a new bicycle.

==============================================================================

This is one big problem. Try finding a real bicycling shop. One that
actually has some old bicycles hanging around. They are few and far between
in my area. There are three shops in the Manchester, NH area. They aren't
worth warm spit.

Same for Nashua, as I recall.

Got to go to Boston. All those students on those budgets get the bicycle
shops thinking "lets us fix it for ya".

Looks like a Harris shop tour.

Tour de Newton.

=======================================================================
"TomCAt" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

I have an old trek touring/sports bicycle. It is in great shape. One
problem, the wheels are 27".

Can I put on 700c's. What about the brake reaching. Is there a brake
that reaches a little further than normal? ]

What is the actual difference in size from 27" to 700c.

Questions

TomCAt said:

Maybe I can pull out the frame a bit.

What do ya think ...

yup.

I took the time to use a calibrated 2x4 and some aero-twine for
alignment--your home shop may not have such professional tools.

😄

They have a recessed nut on them, so I did have to do a bit of drilling, but
they are nice double pivot calipers. I currently have a set of my old
Diacompe single-pivot calipers which are pretty long reach and would most
likely work for you and these do not have the recessed nuts, they are
strictly surface mount. They are eBay item number 7176079739 if you are
interested.

Good luck!

"maxo" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

TonyKiz said:

I just changed the brake
calipers to long-reach style -- purchased the Nashbar ones

Are they recessed bolt or can you fit them on an older frame w/o too many
hassles?

TonyKiz said:

I currently have a set of my old
Diacompe single-pivot calipers which are pretty long reach and would most
likely work for you and these do not have the recessed nuts, they are
strictly surface mount. They are eBay item number 7176079739 if you are
interested.

I'm pretty happy with my ancient Shimano 600 calipers--though I might give
those Tektro/Nashbar ones a try as they're so cheap.

The front fork seems to be the easy part--simply drill out the back hole
in the fork crown--but I'm curious to how to do the rear brake bridge?
Drill it out too? I'd be game--but my frame's none too precious. :P