twenty seven 27 x 1 1/4 27 x 1 1/8 27x1 twentyseven twenty seven panaracer panasonic schwinn puff dunlop 27x1.25 27 x 1.25 continental michelin raleigh english high pressure bead avocet 630 iso etrto 630 schwinn varsity continental traveler raleigh record grand prix super course peugeot mercier
Accessories Bicycles Parts Specials Tools

In West Newton Since 1952 - On The Web Since 1995

Search HarrisCyclery.com Search WWW

27 inch Bicycle Tires from Harris Cyclery
(ISO/E.T.R.T.O. 630 mm)

This is the size used on most older 10- and 12-speed road bikes
made for the U.S. or British market including:

Dawes; Jeunet; Mercier 100; Peugeot UO-8,UE-8; Raleigh Grand Prix, Record, Super Course; Schwinn Varsity, Continental, Super Sport; Univega; Vista and many others.
Other Tire SizesGeneral Article on TiresTire Sizing Systems Explained
divider

Note on tire/rim compatibility:

Traditional 630 mm (27 inch) rims were straight side design, but in the late '70s they evolved to a "hook edge" design which would permit the use of higher pressures.

These days, many 630 mm (27 inch) tires are marked "For hook edge rims only" (some companies use the term "crochet type" instead of "hook edge"...this is the result of poor translation.)

The fact is that modern 630 mm (27 inch) tires will work on older straight-side rims, but they won't handle as much pressure as they are capable of with hook edge rims.

Generally, the "rule of thumb" for traditional 630 mm (27 inch) tires is that they should be inflated to 70-75 psi. This shouldn't be a problem with any tire, despite whatever disclaimer the manufacturer puts on the sidewall. However, if you're restricted to this pressure range, you probably shouldn't be running tires narrower than 1 1/8, or preferably 1 1/4, unless you're a very lightweight rider.

I.S.O.
Size
Traditional
Size
BrandModelPriceKevlar
Belt/Bead
40-63027 x 1 3/8"Club RoostCross Terra$24.95 buy buttonVery Aggressive knobby tread, blackwall, 40-65 psi
DESCRIPTION
35-45-63027 x 1 3/8"Inner Tubes
Schrader or Presta Valve
$4.95 buy button This 35 mm - 45 mm tube size fits 622 mm rims with 700c x 35 mm - 43 mm tires as well as 630 mm rims with 27" x 1-3/8" tires.

Since tubes are stretchy, they do not need to exactly match the size of the tire. Depending on stock, size shipped may not be exactly the same as listed.

32-63027 x 1 1/4"ContinentalUltra GatorSkin$39.95 buy buttonBeltDESCRIPTION
Light, (330g) fast semi-slick. These are really nice! Germany
(Measured width* 27.5 mm)
32-63027 x 1 1/4"ContinentalUltra Sport $19.95 buy button DESCRIPTION
Semi-slick road tread 380 grams
32-63027 x 1 1/4"MichelinWorld Tour$29.95 buy button DESCRIPTION
Traditional gumwall road tire.
Excellent for classic restorations.
(Measured width* 33 mm)
32-63027 x 1 1/4"PanaracerPasela$19.95 buy button DESCRIPTION
Japanese quality, high performance tire.
(different size shown)
32-63027 x 1 1/4"PanaracerPasela Tourguard Belted$24.95 buy buttonBeltDESCRIPTION
Japanese quality, high performance tire. Kevlar belt for puncture resistance
(different size shown)
32-63027 x 1 1/4"TRB33 SchwalbeMarathon$32.95 buy buttonBelt Highly-regarded touring/rough stuff/city tire. Features reflective sidewalls for visibility, special Kevlar/rubber belt for puncture resistance...
DESCRIPTION
28-32-63027 x 1 1/8" - 1 1/4"Inner Tubes
Schrader or Presta Valve
$4.95 buy button This 28 mm - 32 mm tube size fits 622 mm rims with 700c x 28 mm - 32 mm tires as well as 630 mm rims with 27" x 1-1/8" - 1 1/4" tires.

Since tubes are stretchy, they do not need to exactly match the size of the tire. Depending on stock, size shipped may not be exactly the same as listed.

28-63027 x 1 1/8"PanaracerPasela Tourguard Belted$24.95 buy buttonBeltDESCRIPTION
Japanese quality, high performance tire. Kevlar belt
(Measured width* 25.5 mm)
28-63027 x 1 1/8"PanaracerPasela$19.95 buy button DESCRIPTION
Japanese quality, high performance tire
Japanese quality, high performance tire.
(Measured width* 25.5 mm)
25-63027 x 1"PanaracerPasela19.95 buy button DESCRIPTION
Japanese quality, high performance tire.
(different size shown)
25-63027 x 1"PanaracerPasela Tourguard Belted$24.95 buy buttonBeltDESCRIPTION
Japanese quality, high performance tire. Kevlar belt for puncture resistance
(different size shown)
22-25-63027 x 1"Inner Tubes
Schrader or Presta Valve
$4.95 buy button This 23 mm - 25 mm tube size fits 622 mm rims with 700c x 23 mm - 25 mm tires as well as 630 mm rims with 27" x 7/8" - 1 1/8" tires.

Since tubes are stretchy, they do not need to exactly match the size of the tire. Depending on stock, size shipped may not be exactly the same as listed.

Special Purchase!

N.O.S. Avocet Super-skinny 27 x 7/8" FasGrip Slicks


These are the finest high performance tires ever made in the 27 inch size. The FasGrip slick was introduced just as the 700c size started to eclipse 27 inch. If you have a fine old high-performance bike that takes narrow 27" tires, this would be a good time to stock up, while you have the chance. The demand for 27" tires has become too small for any manufacturer to tool up to make high-quality exotic models any more.

Note: We bought Avocet's entire remaining stock of 27 inch tires, you won't find these anywhere else!

Sorry, no more wire bead Avocet 630s available.

DESCRIPTION
22-63027 x 7/8"Avocet FasGrip Criterium 30$29.95 Special, While They Last: 11.95! buy buttonBeadSlick, super-light very high performance tire. 165 grams!!! Japan
The lightest, fastest 630 mm (27 inxh) tire ever made. buy button
18-23-62227 x 7/8"Inner Tubes Presta Valve$4.95 buy button This 18 mm - 23 mm tube size fits 622 mm rims with 700c x 18 mm - 23 mm tires as well as 630 mm rims with 27" x 1" or narrower tires.

Since tubes are stretchy, they do not need to exactly match the size of the tire. Depending on stock, size shipped may not be exactly the same as listed.

*Width measured on Weinmann R19 rims, 19 mm internal dimension.

Click here for 630 mm/27 inch rims!

Click here for 630 mm/27 inch wheels!

Need tire levers? Click Here!

divider

Accessories Bicycles Parts Specials Tools

Articles by Sheldon Brown and others
Harris
Home
Beginners Brakes Commuting
Lights
Cycle-
Computers
Do-It-
Yourself
Essays
Family
Cycling
Fixed Gear
Singlespeed
Frames Gears &
Drivetrain
Bicycle
Humor
Bicycle
Glossary
Bicycle
Links
Old
Bikes
Repair
Tips
Tandems Touring What's
New
Wheels Sheldon
Brown

divider

Back to the Harris Cyclery Home Page

divider

Ordering Feedback? Questions?

Web site by Sheldon Brown

Sheldon Brown's Hotlists

If you would like to make a link or bookmark to this page, the URL is:
http://harriscyclery.com/630

Copyright © 2005, 2007 Harris Cyclery