Bottom Bracket Spares

Moruya Bicycles stocks spares for a range of bottom brackets.

Ball Retainer BB 3pc
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87903
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BB ball retainer 3 pc
Ball retainer for a standard bottom bracket with separate cups & cones. Easier to assemble than loose balls (but put them in the right way), but loose balls will generally give a more durable repair.
 Weight: 11g.

Ball Retainer BB One Piece
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87904
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OPC BB retainer
5/16" balls in retainer to suit traditional One Piece (American) bottom brackets.
 Weight: 29g.

BB Axle Bolt BMX
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81905
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Suits 3-piece BMX crank sets. Low profile outer face to prevent ankle clipping. The reinforcing step between the head and the shaft is a low profile which keeps out of the way of the axles we've come across so far.

Head outer diameter 22.4mm. Uses 6mm allen key. Thread Length 18mm. Reinforcing Step 14.6mm wide by 1mm thick. These are sold individually. If you need a pair, please order 2. Weight: 18g.

BB Axle Bolt ISIS 15mm
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81906
!
ISIS Bolt 15mm
Crank bolt for cross-country style ISIS bottom bracket axles. 15mm is the larger of the two available threads, to fit into the thinner-walled axles.

 

Weight: 18g.

BB Axle Cottered 41/55/45 (141mm)
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00145
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For repairing very old bikes and some exercise bikes.

Left Extension (cone to tip): 41mm. Centre (cone to cone): 55mm. Right Extension (cone to tip): 45mm.

Overall Length: 141mm. Weight: 232g.

BB Axle Cottered 42/55/48 (145mm)
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00144
!
For repairing very old bikes and some exercise bikes.

Left Extension (cone to tip): 42mm. Centre (cone to cone): 55mm. Right Extension (cone to tip): 48mm.

Overall Length: 145mm. Weight: 240g.

BB Axle Cottered 45/53/49 (147mm)
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00143
!
For repairing very old bikes and some exercise bikes.

Left Extension (cone to tip): 45mm. Centre (cone to cone): 53mm. Right Extension (cone to tip): 49mm.

Overall Length: 147mm Weight: 244g.

BB Axle Nut
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81901
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For square taper bottom brackets that take a nut rather than a bolt. Hardened steel - very strong nut, designed to be tightened very tight.
 Weight: 6g.

BB Cup Set for 3-piece with Seals
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81970
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Old-fashioned bottom bracket cups for use with separate axle. We keep these in stock for our electric bikes as they don't use standard bottom bracket axles so can't be switched over to cartridges.
 Weight: 136g.

Cotterpin
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81910
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For fossil bikes.
3/8" diameter (suits all but French bikes). Weight: 20g.

Loose Ball 1/4" Chrome Steel
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87106
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balls
10c Each if you buy 100 or more.
Chrome steel.
1/4" balls are the standard size for bottom brackets (11 per side) and rear hubs (9 per side). Several front hubs on BMX and Mountainbikes also have the same axle, cone and bearing size as rear hubs.Weight: 1g.

RaceFace Chain Line Spacer 1mm
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81955
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rf 1mm white washer
Chain Line spacer washer (white) for RaceFace X-type cranks.

Inner Diameter: 24.2mm. Outer Diameter: 29mm. Thickness: 1mm.

Weight: 1g.

RaceFace Crank Cap X-Type
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81953
!

One key release outer cap - unscrew the crank bolt and it pushes against the inside of the left hand threaded cap to remove the crank. We started stocking these when we forgot to tighten the cap on a new bike...

Alloy. They screw in anti-clockwise with a 10mm allen key. Weight: 4g.

RaceFace Pressure Washer 1mm
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81956
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rf 1mm washer black

Black pressure washer for RaceFace X-type 2-piece cranks. Steel, plastic coated. Black.

Inner Diameter: 23.8mm. Outer Diameter: 29.3mm. Thickness: 1mm.

Weight: 1g.

Redline Chainwheel to Crank Bolt
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81117
!
This bolt holds the chainwheel onto the Redline Monster 3-piece cranks.
Weight: 13g.

Shimano BB Spacer 2.5mm (FC-M760)
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81915
!
Alloy spacer from FC-M760. 2.5mm thick. Fur use with 68mm bottom bracket shells (1 each side) and for bikes without a bottom bracket mounted front derailleur. (1 on the right side).
Weight: 2g.

Wheels Mfg BB Spacer 0.7mm
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81916
!

Thin spacer for fine adjustment of chain line - can be handy if your chainring is touching your frame under load.

Shipping Weight: 10g.