Shimano Bottom Bracket BB-UN300 BSA 73x122.5 JIS ✪ Revolution Cycle

Cart

Subtotal: $0.00

Bikes

 ClearanceFatbikeseBikesMountain BikesRoad/Gravel BikesHybrid/Urban BikesKids BikesUsed BikesView All
Scott 2023 Speedster 30

Scott 2023 Speedster 30

$1,399.99

$1,779.99
Scott Contessa Active 40

Scott Contessa Active 40

$849.99

$1,049.99
BMC Roadmachine 01 AMP X ONE USA Force AXS XPLR 1x12Speed TQ HPR50 CL3

BMC Roadmachine 01 AMP X ONE USA Force AXS XPLR 1x12Speed TQ HPR50 CL3

$8,599.99

$13,599.00
Scott Aspect 970

Scott Aspect 970

$729.99

Gear

 HelmetsFootwearSunglasses/GogglesGlovesHydration PacksArmourClearance
Fox MainFrame Youth Helmet

Fox MainFrame Youth Helmet

$76.98

$109.95
Castelli Womens Roubaix Gel 2 Glove

Castelli Womens Roubaix Gel 2 Glove

$40.00

Craft Siberian 2.0 Glove

Craft Siberian 2.0 Glove

$40.00

$79.99
Suncloud Dawson Sunglasses

Suncloud Dawson Sunglasses

$29.99

$59.99

Clothing

 JerseysJackets/VestsShirts/HoodiesShorts/BibsTights/PantsTrail/Casual ShortsUndergarments/BaselayersClothing AccessoriesKid's ClothingClearance
Scott Shirt Trail Progressive S/SL

Scott Shirt Trail Progressive S/SL

$62.96

$89.95
7Mesh Slab Short Men's

7Mesh Slab Short Men's

$74.95

$150.00
100% Womens Ridecamp Short

100% Womens Ridecamp Short

$49.99

$108.00
Fox Ranger Short w/Liner

Fox Ranger Short w/Liner

$59.95

$119.95

Accessories

On-Bike

BasketsBells & MirrorsCargo Bike GearCycling ComputersPannier & Bikepacking BagsFenders & MudguardsKickstandsLightsPannier RacksPogiesTraining WheelsBottle CagesBottlesClearance

Additional Accessories

Action CameraBike StorageCamping GearCar RacksChild Carriers & StrollersCreams & LotionsCups & MugsLocks & SecurityNutritionPumps & GaugesStickersStrollersToolsTrailersTrainersTravel CasesClearance
Ortlieb Pannier Touring Sport Roller Free QL2.1 Pair

Ortlieb Pannier Touring Sport Roller Free QL2.1 Pair

$219.99

Knog Bell Oi

Knog Bell Oi

$24.99

Specialized Light Stix Fabric Clip Mount

Specialized Light Stix Fabric Clip Mount

$12.00

Muc-off Fork Protection Kit

Muc-off Fork Protection Kit

$64.99

Lezyne Frame Caddy Frame Bag 2.5L Black

Lezyne Frame Caddy Frame Bag 2.5L Black

$99.99

S&S Trail-Gator Tow Bar

S&S Trail-Gator Tow Bar

$182.99

Parts

Drivetrain

Cassettes & FreewheelsChain PartsChaingaurds & BashgaurdsChainringsChainsCrank & Chainring PartsCranksDerailleur HangersFront DerailleursFull GroupsetsRear DerailleursShift Levers

Brakes

Brake AdaptorsBrake CalipersBrake LeversDisc Brake PadsDisc BrakesetsDisc RotorsRim Brake PadsRim Brakes

Frame & Fork

FramesetsFrame PartsForksFork PartsPivot, Bolt, & Bearing KitsRear ShocksRear Shock Parts

Contact Points

Dropper PostsGrips & BartapeHandlebarsSaddle PartsSaddlesSeatpost CollarsSeatpost PartsSeatpostsStems

Pedals

Clipless CleatsPedalsPedal Parts

Maintenance

Cables, Housing, & FittingsCarbon Paste & Anti-SeizeChain LubesCleaners & DegreasersDisc Brake Fluid & Bleed KitsFork Oils and ProductsGreases

Bearings

BearingsBottom BracketsHeadsetsHeadset Parts

Wheel & Tire

HubsHub PartsRimsSpokes & NipplesTubeless EquipmentTire Studs and GluesTube Plugs & Tire PatchesTiresTubesValvecaps & AdaptorsWheels & Wheelsets

Electronics

eBike Parts & KitsElectronic Parts

Clearance

Clearance

Bikes

ClearanceFatbikeseBikesMountain BikesRoad/Gravel BikesHybrid/Urban BikesKids BikesUsed BikesView All

Gear

HelmetsFootwearSunglasses/GogglesGlovesHydration PacksArmourClearance

Clothing

JerseysJackets/VestsShirts/HoodiesShorts/BibsTights/PantsTrail/Casual ShortsUndergarments/BaselayersClothing AccessoriesKid's ClothingClearance

Accessories

On-Bike

BasketsBells & MirrorsCargo Bike GearCycling ComputersPannier & Bikepacking BagsFenders & MudguardsKickstandsLightsPannier RacksPogiesTraining WheelsBottle CagesBottlesClearance

Additional Accessories

Action CameraBike StorageCamping GearCar RacksChild Carriers & StrollersCreams & LotionsCups & MugsLocks & SecurityNutritionPumps & GaugesStickersStrollersToolsTrailersTrainersTravel CasesClearance

Parts

Drivetrain

Cassettes & FreewheelsChain PartsChaingaurds & BashgaurdsChainringsChainsCrank & Chainring PartsCranksDerailleur HangersFront DerailleursFull GroupsetsRear DerailleursShift Levers

Brakes

Brake AdaptorsBrake CalipersBrake LeversDisc Brake PadsDisc BrakesetsDisc RotorsRim Brake PadsRim Brakes

Frame & Fork

FramesetsFrame PartsForksFork PartsPivot, Bolt, & Bearing KitsRear ShocksRear Shock Parts

Contact Points

Dropper PostsGrips & BartapeHandlebarsSaddle PartsSaddlesSeatpost CollarsSeatpost PartsSeatpostsStems

Pedals

Clipless CleatsPedalsPedal Parts

Maintenance

Cables, Housing, & FittingsCarbon Paste & Anti-SeizeChain LubesCleaners & DegreasersDisc Brake Fluid & Bleed KitsFork Oils and ProductsGreases

Bearings

BearingsBottom BracketsHeadsetsHeadset Parts

Wheel & Tire

HubsHub PartsRimsSpokes & NipplesTubeless EquipmentTire Studs and GluesTube Plugs & Tire PatchesTiresTubesValvecaps & AdaptorsWheels & Wheelsets

Electronics

eBike Parts & KitsElectronic Parts

Clearance

Clearance

Service

Rides & Community

Shimano Bottom Bracket BB-UN300 BSA 73x122.5 JIS
*Pictures shown are for illustration purposes only, actual product may vary. Please contact us for more details or to confirm colours.

Shimano

Bottom Bracket BB-UN300 BSA 73x122.5 JIS

$25.99

Or $6.82 Bi-Weekly through Sezzle

Pickup

Shipping

Jasper Ave

✓ In Stock

Sherwood Park

✗ Sold Out

In Stock

−
+

Description

• Simple and reliable square taper bottom bracket

• Replaces both BB-UN26 and BB-UN55

• Sealed cartridge bearings

• Cr-Mo axle

• For bicycles equipped with a chain case, select BB-UN300-K

• For E-type front derailleur compatibility, choose BB-UN300-E

• Fixing bolts not included; Shimano FC-E6000 bolts suggested


financeit financeit
Specs
Inventory
Size Chart
Geometry

Bb Bearing

Steel

Bb Shell Thread

British

Bb Shell Width

73mm

Interface

Square

Primary Color

Silver

Spindle Length

122.5mm

Sherwood Park: Sold Out

Jasper Ave: 47

SKU: 210000034615

×