Set Bottom Bracket
The Crankset is the key bicycle part that converts human physical motion into the rotational power you need to get your bicycle moving. Your success and enjoyment will be a function of its performance. To upgrade or maintain you first need to know what goes into making a great crankset; cranks, spiders, chainring, shell, bottom bracket and spindle each have a roll to play. Here's a bit of terminology to get you going.
Cranks Arms: These are the essential arms connecting the bicycle pedals to the spindle or axle. The left hand bike crank is typically bolted to the end of the spindle. The right crank arm can be attached in a similar fashion, but quite often today is permanently mounted to the drive-side spindle and spider.
Buy cheap if you are a casual road rider but if your passion in life is jumping curbs and bunny hoping up the steps, the impact on reconnecting with the pavement will exert huge forces on the pedal-crank and crank-spindle interface, so invest in quality arms.
Spider: These are the star shaped arms that radiant out from the right crank to hold the front sprockets or "chainring."
Chainring: A fancy name for the front sprockets. Different manufacturers, just like cars, design them with various bolt patterns so it is essential to identify what specifically will work with your crankarm-spider-spindle combination and front derailleur.
Bottom Bracket Shell: This is the tube welded to the lowest point of your bicycle frame designed to accept a set of bearings and the main spindle (bottom bracket assembly). It is typically threaded to accept the bottom bracket assembly. English, French and Italian bikes are NOT all the same diameter or threaded with the same tpi (teeth per inch) thus it is important to get the right match. It is not really part of the chainset, but you must know its specifications in order to replace any components.
Bottom Bracket Assembly: This bicycle part comes in numerous combinations and configurations, but essential includes the drive spindle, a set of bearings and cups that thread into the shell to hold all of these parts in place. This assembly allows the pedals to freely rotate and put power to the chain.
Spindle: The last piece of the puzzle is the drive axle. It comes in a number of different configurations depending on the attachment link between crank and spindle. It may or may not come independent of the bearing assembly. In two piece cranksets is attached to the right crank arm. The bottom bracket bearings and cups are sold separately to match spindle diameter and length.
Where buying a complete crankset becomes confusing is that these key 7 pieces (2 cranks, spider, chainrings, spindle, retaining cups and bearings) are not always sold in the same way or have one set of sizes.
It is essential to know what specifications are necessary so repairs and upgrades can add speed and reliability to your riding experience. Read further on myWheelsAndMore.com website for information and lots of pictures that will add clarity to this article. Find out what you need to know and why and how bicycle parts suppliers and manufacturers continue to tweak their crankset designs for weight, durability and speed gains.
Hope Technology - Shimano Bottom Bracket
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BMX Bike BB Bottom Bracket Bearing Set $5.99 |
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MOUNTAIN BICYCLE BOTTOM BRACKET CUP SET BIKE PARTS 183 $12.99 |
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Vintage Dura Ace 7400 Bottom Bracket Set $3.50 |
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Demolition 19mm Mid Bottom Bracket Set $29.99 |
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NIB Campagnolo Euclid ITALIAN THREAD Bottom Bracket Set $26.00 |
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Vintage Bicycle bottom bracket crank bearing set, Black $8.99 |
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2010 EC90 Bottom Bracket Set 68mm English $22.93 |
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CAMPAGNOLO BOTTOM BRACKET AXLE SET COMPLETE 70-SS RARE vintage RETRO VELO bike $37.39 |
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Park Tool BBT-90.3 PressFit Bottom Bracket Bearing Tool Set $36.99 |
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Profile Racing Spanish Bottom Bracket Set (no spindle) $31.99 |
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Odyssey 19mm American / Mid Bottom Bracket Set $38.99 |
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bicycle cycle bike 6-noth bottom bracket tools repair axle tool set $1.99 |
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BICYCLE BOTTOM BRACKET SET 3 PC CRANK 1.37X24T $11.99 |
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Cassette bottom bracket set 68x113mm $1.00 |
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THM Carbon Clavicula crank arms set BB30 or italian bottom bracket NEW $565.55 |
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Truvativ X-flow mountain bike crank set & bottom bracket 170 3 gears $19.99 |
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Bmx sealed 19mm euro Bottom Bracket set $29.99 |
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SRAM GXP Team Bottom Bracket BB Road Cup Set Italian $31.99 |
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Vintage Sugino Bottom Bracket Wrench Tool Set $7.15 |
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Shimano Bottom Bracket 68x113 ( 2 piece SET ) $10.00 |
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Bottom Bracket Set 3/Piece Crank 1.37x24t Chrome. Bike $10.06 |
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Bottom Bracket Set 1/Piece Crank 5/16x7 24t Chrome Bike $10.06 |
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Bottom Bracket Set 1/Piece Crank 5/16x9 24t Chrome Bike $10.06 |
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Bottom Bracket Set 1/Piece Crank 5/16x9 24t Gold Bike $16.65 |
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New 2011 SRAM X9 Crank Set 44-33-22 Triple 64\104 175mm crank GXP bottom bracket $31.31 |
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SRAM OMNIUM BLACK 167.5MM TRACK BIKE FIXED GEAR 48t CRANK SET & Bottom Bracket $220.00 |
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SRAM OMNIUM SILVER 167.5MM TRACK BIKE FIXED GEAR 48t CRANK SET & Bottom Bracket $199.50 |
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SRAM OMNIUM SILVER 175MM TRACK BIKE FIXED GEAR 48t CRANK SET & Bottom Bracket $199.50 |
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NOS Cottered Bottom Bracket Nervar Bicycle Spindle Set $25.00 |
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New FIRST BB English Square Bottom Bracket Set 68x107mm (Aluminum Sleeve) $23.00 |
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New FIRST BB English Square Bottom Bracket Set 68x119mm (Aluminum Sleeve) $28.00 |
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OLD SCHOOL BMX YMT JAPAN BOTTOM BRACKET BB SET SKYWAY HARO GT REDLINE TANGE $19.99 |
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OLD SCHOOL BMX TANGE BOTTOM BRACKET BB SET SKYWAY HARO GT REDLINE KUWAHARA $19.99 |
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NEW SRAM X9 CRANK SET BLACK/GREY 44/33/22 175MM 10 SPEED GREY BOTTOM BRACKET $191.24 |
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Bicycle Bottom Bracket SET TV SQUARE 68x113 ALLOY CUP $34.00 |
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Bontrager mountain bike crank set & bottom bracket 175 3 gears $19.99 |
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Shimano R450 Crank Set // 175mm 52/39t Octalink bottom bracket included $20.00 |
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Campagnolo vintage BB bottom bracket bearing set NOS $20.00 |
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BB - Old Style BICYCLE BOTTOM BRACKET Cup Set 1.37x24 - English - NEW - SUNLITE $5.98 |
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BB - One-piece Bottom Bracket Cup Set for one piece crank $7.50 |
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BB - One-piece Bottom Bracket Cup Set for one piece Schwinn cranks 28TPI $11.98 |
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New! Cannondale SI BB30 Bottom Bracket Bearing Shields (set of 2) $5.99 |
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New! Cannondale SI BB30 Bottom Bracket Bearing Shields (set of 2 black) $5.99 |
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Shimano Saint M815-1 Crankarm Set 170mm with 83 mm Bottom Bracket $239.95 |
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shadow conspiracy BOTTOM BRACKET bearing set SPANISH 22mm green bmx $23.95 |
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SRAM OMNIUM BLACK 172.5MM TRACK BIKE FIXED GEAR 48t CRANK SET & Bottom Bracket $220.00 |
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28 tpi schwinn & bmx one piece crank bottom bracket set $21.99 |
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SRAM TRUVATIV GXP Team Bottom Bracket BB Set Mtn Engl $33.99 |
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Fixed Gear Crank Bolts / Bottom Bracket BB / Set of 2 $6.99 |
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Shimano Ultegra Octalink Crank Set FC-6500 175 mm w/ BB-6500 Bottom Bracket $19.99 |
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Complete 5 Piece 68x117.5 Bottom Bracket Set $5.91 |
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BMX Professional Waterproof Bottom Bracket Set 24t $5.91 |
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1953 Rudge Sports(Raleigh Industries) Bottom Bracket Set w/ Both Cups! $25.00 |
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SHIMANO BOTTOM BRACKET SET $65.00 |
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Redline BMX 19mm American Sealed Bottom Bracket Set NEW $27.00 |
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Shimano XTR M980 HollowTech II English Bottom Bracket Set SM-BB90A 68/73mm $36.99 |
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Eastern 22mm Euro bottom bracket set (no spindle) $35.93 |
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Eastern American Bottom Bracket set for 22mm spindles $29.93 |
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Eastern Spanish Bottom Bracket set for 20mm spindles $24.93 |
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Eastern Spanish Bottom Bracket Set for 22mm spindles $24.93 |
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Campagnolo Nuovo Record bottom bracket bearings (3 sets of bearings) $1.07 |
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Bearing Tool Set for BB30 Bottom Bracket New $73.50 |
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A&E Bottom Mounting Bracket Catalina Set 3313117008 $9.00 |
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Bmx sealed 19mm mid size Bottom Bracket set $24.99 |
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Bmx sealed 22mm mid size Bottom Bracket set $25.99 |
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Bmx sealed 19mm spanish Bottom Bracket set $29.99 |
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Bmx sealed 22mm spanish Bottom Bracket set $24.99 |
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Bmx sealed 22mm euro Bottom Bracket set $32.99 |
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Bmx sealed 19mm american Bottom Bracket set $27.99 |
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PRIME-LINE Garage Door Bottom Bracket (LH / RH) *Set* GD-12116 $7.00 |
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BMX Bike BB Bottom Bracket Bearing Set $5.99 |
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Bmx sealed 20mm american Bottom Bracket set with bolt $44.98 |
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BMX/JUMP/Fixed Gear 19mm Mid Bottom Bracket BB Sealed Bearings Set - Green $18.59 |
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BICYCLE Bottom Bracket Set 3 PC Crank Chrome 3PCS NEW $14.75 |
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Shimano XT LX Hone Bottom Bracket FC-M580 BB Cup Set $34.99 |
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NOS Tioga Bmx Bottom Bracket Cup Set Fits Haro Redline Dk Gt Powerlite Se $33.99 |
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NOS Gt Bmx Bottom Bracket Cup Set Fits Haro Redline Dk Powerlite Se $23.99 |
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1989 BMW E30 hood engine bay bottom roller set & brackets 325 318 88 89 90 91 $29.00 |
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NOS Original Vintage Schwinn Bicycle Complete Bottom Bracket Set $45.00 |
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Bike Bicycle BB Bottom Bracket Bearing Set Mini 43mm Cups - NOS $3.99 |
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Sugino 75 Track Bottom Bracket Set English with Cups Boxed $121.99 |
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NOS Original Vintage Schwinn Bicycle Complete Bottom Bracket Set A $45.00 |
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SUGINO 75 NJS BOTTOM BRACKETS SET Super Lap BB-SG75 $186.92 |
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NOS SHIMANO BOTTOM BRACKET TOOL SET, TL-FC30, BRAND NEW $149.99 |
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NEW WALD 1 PIECE BOTTOM BRACKET SET BEARINGS AND ALL!!! $6.99 |
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ONE PIECE CRANK BOTTOM BRACKET SET SEARS HUFFY OTHERS $29.00 |
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NIB Avocet Bottom Bracket Spindle Stronglight Specialies TA Triple Crank Sets $9.99 |
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Fine NOS Gipiemme "Special" Precision 70mm English Thread Bottom Bracket Set $9.99 |
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Park Tool Bike Bicycle BBT-30.3 Bottom Bracket Bearing Tool Set For BB30 & PF30 $32.97 |
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YOUTH BOTTOM BRACKET CUP SET BICYCLE PART 666 $9.99 |
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One piece Bottom Bracket Cup Set 24tpi Sealed Mechanism $12.99 |
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28 tpi schwinn & bmx one piece crank bottom bracket set $21.99 |
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Set of 2 Sealed Bicycle Bottom Bracket Bearings BMX Bike Mid Sized New $24.71 |
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SRAM TruVativ Ceramic PressFit Bottom Bracket 79mm 83mm BB30 Bearing Cup Set $205.99 |
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MOUNTAIN BICYCLE BOTTOM BRACKET CUP SET BIKE PARTS 183 $12.95 |
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Vintage Stronglight Italian Bottom Bracket Cup Set Made in France 36x24 tpi $9.99 |
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Demolition 19mm Spanish Bottom Bracket Set $29.99 |
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SRAM BlackBox GXP Ceramic Bottom Bracket Set Road/Mtn $173.00 |
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Retro Road Bike Bottom Bracket Cups Set New! $5.34 |
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550/1196 Action Bottom Bracket Set 68/73-113 ISIS $29.99 |
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MENB+ME-HRM: Portable DVD player / Netbooks / Notebooks / Tablet pc & Laptop in Car Headrest / Back Seat Black Expandable Firm Grip Mount Cradle For The Motorola Xoom PC tablet device Android 3.0 $19.95 This mount is adjustable in all angles covering its length width and depth. The width can be adjusted through basic expansion, but arms can be unattached with and easy lock slot mechanic and can adjust to three separate levels meaning the side of your deice can be gripped were you find most comfortable. Even the grip handles can be adjusted with a pop slot allwoing for perfect depth and ultimate c... |
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PS3 Eye Camera Mounting Clip $1.99 Your PlayStation Eye camera catapults your gaming experience into the future, pulling you deeper into your favorite games and transforming the way you compete and explore. Bring your gaming setup up to par, and experience the future of a sleeker, more accessible configuration with the PlayStation Eye Camera Mount. This slim, lightweight accessory attaches your PlayStation Eye camera discreetly and... |
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