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Bottom Bracket Parts from Harris Cyclery

Bottom Brackets

BB threading: British? Italian? French? Click here!     A partial list of cranksets and their recommended BB size.

 

Phil Wood Bottom Brackets

Sealed Cartridge Bottom Brackets
Made In USA!

Consist of a cartridge and 2 mounting rings.

What makes Phil Wood Bottom Brackets so great?

JIS Taper	JIS Low Profile	Campagnolo (ISO Taper)

Two Phil Mounting Rings are needed to hold the Bottom Bracket in the frame. Select your frame's threading below.
Part #	Threading	Material	Weight	Price (Pair)
BB285	ISO/British	Stainless Steel	34 Grams	$37.95
BB286	ISO/British	Aluminum	11 Grams	$43.95
BB287	Italian	Stainless Steel	34 Grams	$37.95
BB288	Italian	Aluminum	11 Grams	$46.95
BB289	French	Steel	34 Grams	$47.95
BB291	Swiss	Steel	34 Grams	$47.95
BB292	Raleigh 26 TPI	Steel	34 Grams	$47.95

Phil Wood Bottom Bracket Tool

The diameter and notch pattern on the Phil Wood mounting rings are not the same as any other BB mounting system. (That's not because they choose to be different...Phil was the first to use this type of mounting, other makers of cartrdige bbs chose to create their own proprietary tooling.)

So you will need a Phil Wood tool. Sold individually, but work better if used in pairs, especially on French/Italian threaded bottom brackets.

Portable/Consumer mounting tool

 

Shimano Square Taper Bottom Brackets

Shimano BB-UN55 English thread, 68 mm width    $25.95

This style fits almost all frames not made in France or Italy. Spindle taper is J.I.S.

Shimano BB-UN55 Italian 70mm width $25.95

Cup threading is 36mm x 24 TPI.

Specify spindle length: 107, 113, 115 & 118mm

Square Taper BBs in Track Length (103mm)

IRD 68 x 103 mm Bottom Bracket BB102  $29.95   Made in Japan by Tange CroMoly J.I.S. square taper spindle BB Shell Width: 68 mm Spindle Square Taper: 103 mm Steel Cups Sealed cartridge bearings BB Thread Type: English NOTE: The 103mm axle is only needed for true track frames. Bottom Bracket Dimensions (See also my Bottom Bracket Size Article and Bottom Bracket Cribsheet) Standard: Threading Adjustable (left) cup direction Fixed (right) cup direction Shell Width Applications/Notes British I.S.O. 1.370" X 24 tpi 1.375" X 24 tpi right left Standard 68 mm O.S. 73 mm The overwhelming majority of bicycles in current production. British and I.S.O. are interchangeable. ISIS Overdrive 48 x 1.5 mm right left 68mm 100 mm New proposed standard oversized system. Italian 36 mm X 24 tpi right right (wrong!) 70 mm Italian and some high-end French bicycles. Prone to problems due to the right threaded fixed cup, which tends to unscrew itself in use. French 35 mm X 1mm (25.4 tpi) right right (wrong!) 68 mm Obsolete, used on older French bicycles. Prone to problems due to the right threaded fixed cup, which tends to unscrew itself in use. Swiss 35 mm X 1mm (25.4 tpi) right left 68 mm Same thread as French, but fixed cup is left threaded for reliability. Raleigh 1 3/8" X 26 tpi right left 71mm 76 mm Older British-made Raleighs, especially 3 speeds. O.P.C. Ashtabula Male threads on crank 24 tpi (most) 28 tpi (Schwinn, Mongoose) 68 mm (2.68") wide 51.3 mm (2.02") i.d. (approximate) Older U.S. bikes, BMX, Juvenile bikes, Department store bikes. 24 tpi cranks use #66 retainers, with 10 5/16" balls. Note: Some higher quality(mostly BMX) bikes used Tange 24 tpi BBs with #64 retainers. 28 tpi cranks use #64 retainers, with 9 5/16" balls.

French Thread bottom bracket parts are on our French Cranks page Phil Wood has French-thread retaining rings for their bottom brackets.

Swiss Thread bottom bracket parts are on our French Cranks page Phil Wood has Swiss-thread retaining rings for their bottom brackets.

Grade 25 1/4" Balls bag of 25

Virtually all traditional bottom brackets use 11 1/4" balls on each side. These are the highest quality, grade 25. Many shops use the cheaper grade 100 or even grade 300, but we feel that at this price anybody can afford the best.

Using indivual loose balls is gives better results than balls in retainers, so we don't carry retainers for this application. The primary advantage of using retainers is slightly faster assembly at the factory, and also the opportunity to use fewer balls.

The 1/4" size also fits most rear hubs, 9 per side, so you might want to stock up.

See also our Bearings Page

Don't forget to use plenty of grease!

 

Crank Fixing Bolts

Various Mfrs. Self-extracting Crank Bolts These fit all traditional square tapered bottom brackets. CK029 14.95
Various Mfrs. M8 Capless Steel Crank Bolts These fit all traditional square tapered bottom brackets. CK028 $5.95 Use a long-handled 8 MM Allen wrench.
Crank Fixing bolts from Quality Bicycle Products

See also my article on servicing cottered cranks.

CK095 (English)	9.5 mm (3/8") Crank Cotters $1.95 Each	This size fits Raleighs and other English bikes, also fits most Asian made cottered cranks.	(You will probably need to file the flat down some to fit your cranks)
CK090 (French)	9.0 mm (French Size) Crank Cotters $3.50 Each	This size fits most French bikes.

For Parts for American-style frames that use one-piece cranks, click here!

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and others.

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