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BOX Two Prime 9 Speed Derailleur, X-Wide Cage, Black
BOX Two Prime 9 Speed Derailleur, X-Wide Cage, Black

Prime 9 Technology for less derailleur travel and better chainline, less wear, and improved lifespan Box Two features: Tri-Pack limited slip … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

your price $141.99 + ships free

BuyBuyPART NUM 571632
Box Three Prime 9 X-Wide Multi Shift Group Set, Matte Black
Box Three Prime 9 X-Wide Multi Shift Group Set, Matte Black

Wide range 9 speed multi-shift group with up to 3 gears per shift Simple durable performance without all the bells and whistles Includes … read more

your price $214.99 + ships free

BuyBuyPART NUM 610880
BOX Two Prime 9 Rear Shifter, Single Shift, Black
BOX Two Prime 9 Rear Shifter, Single Shift, Black

Prime 9 Technology for greater simplicity and durability Available in single shift option for eMTB to keep the user from shifting multiple … read more

your price $62.99

BuyBuyPART NUM 396353
BOX Eclipse Linear Pull Brake 108mm Reach Black
BOX Eclipse Linear Pull Brake 108mm Reach Black

BOX Linear Pull Brakes 35 millimeters of vertical brake pad adjustment Precision sealed bearing pivots Titanium and stainless steel … read more

your price $119.99 + ships free

BuyBuyPART NUM 655969
Box Three V-Brake, 108mm, Silver
Box Three V-Brake, 108mm, Silver

Cold forged, CNC machined 6061 T-6 Aluminum V-brakes 30mm of vertical brake pad alignment for ease of use and compatibility Brass bushing … read more

your price $39.99 + ships free

BuyBuyPART NUM 592244
Box One XS Mini Threadless Carbon Fork, 20" x 10mm, 1", Black
Box One XS Mini Threadless Carbon Fork, 20" x 10mm, 1", Black

Rider-specific designs that are strong, lightweight and extremely reliable, to meet the demands of elite and professional racers Features … read more

your price $329.99 + ships free

BuyBuyPART NUM 841072
Box One Front Load Stem, 48mm x 31.8mm x 28.6mm, Black
Box One Front Load Stem, 48mm x 31.8mm x 28.6mm, Black

Traditional front loading style BMX stems with a 31.8mm clamp, compatible with MTB and oversized BMX handlebars Constructed from 6061-T6 … read more

your price $69.99 + ships free

BuyBuyPART NUM 697072
Box One Chain Tensioner 10mm x 2 Axle Hole, Red
Box One Chain Tensioner 10mm x 2 Axle Hole, Red

Box One Chain Tensioners are extruded then CNC-machined from 7075 aluminum for an optimal balance of strength and weight A minimalist design … read more

your price $29.99 + ships free

BuyBuyPART NUM 437707
BOX Two Prime 9 Groupset, Single Shift
BOX Two Prime 9 Groupset, Single Shift

Includes cassette, derailleur, shifter and chain Single shift options are for eMTB to keep the user from shifting multiple gears under load … read more

$47 offretail $309.99 your price $262.49 + ships free

BuyBuyPART NUM 562991
BOX ONE Alloy Triple Taper Handlebar 31.8 x 6" Black
BOX ONE Alloy Triple Taper Handlebar 31.8 x 6" Black

Tapered and welded, alloy 31.8mm clamp BMX handlebar. Box One Alloy Triple Taper Handlebars are a great choice for up-and-coming BMX racers and diminutive … read more

your price $99.99 + ships free

BuyBuyPART NUM 721402
BOX One Alloy Triple Taper BMX Handlebar, Black
BOX One Alloy Triple Taper BMX Handlebar, Black

Introducing the world`s first tapered and welded, alloy 31.8mm clamp BMX handlebar Box One Alloy Triple Taper Handlebars are stiffer than … read more

your price $99.99 + ships free

BuyBuyPART NUM 494226
BOX Three Prime 9 Cassette - 9-Speed, 11-46t, Black
BOX Three Prime 9 Cassette - 9-Speed, 11-46t, Black

The Box Three Prime 9 cassette is a great all-around cassette option. All cogs are stamped from steel and subsequently, the larger ones are pinned to … read more

your price $76.99 + ships free

BuyBuyPART NUM 549106
Box One Prime 9 Chain, 9 Speed, 126L, DLC Black
Box One Prime 9 Chain, 9 Speed, 126L, DLC Black

Externally, Prime 9 chains have similar dimensions to existing 9 speed chains. This unique geometry allows for thicker side plates than 12 speed … read more

your price $54.99 + ships free

BuyBuyPART NUM 432997
BOX Two Prime 9 Groupset, Multi Shift
BOX Two Prime 9 Groupset, Multi Shift

Includes cassette, derailleur, shifter and chain Single shift options are for eMTB to keep the user from shifting multiple gears under load … read more

$47 offretail $309.99 your price $262.94 + ships free

BuyBuyPART NUM 566071
BOX BoxTwo Stem Spacer Kit, 1-1/8" - Black
BOX BoxTwo Stem Spacer Kit, 1-1/8" - Black

Super light CNC machined 6061 aluminum spacers for fine-tuning stem height Includes one each 3, 5, 10mm spacers and two each 1mm spacers … read more

your price $9.99

BuyBuyPART NUM 388428
Box Three Chain Tensioner, 10mm, Black
Box Three Chain Tensioner, 10mm, Black

Adjusting chain tension is quick and easy with the new Box Three Chain Tensioner With a single hole `lollipop` design, these tensioners reduce … read more

your price $14.99

BuyBuyPART NUM 269732
BOX Four Cassette - 8-Speed, 11-42t, Black
BOX Four Cassette - 8-Speed, 11-42t, Black

The BOX Four cassette adapts our Prime 9 philosophy of durability, simplicity, and reliability at a great price point. All cogs are stamped from steel … read more

your price $54.99

BuyBuyPART NUM 895399
Box One Cone Presta Valve Caps, Red
Box One Cone Presta Valve Caps, Red

CNC machined from 6061-T6 aluminum alloy, Box One Valve Caps add a touch of style to any bike Available in anodized red, blue and black with … read more

your price $6.99

BuyBuyPART NUM 839197
BOX Four Narrow/Wide 8 Speed MTB Chainring, 104mm 4-bolt, 32T, Black
BOX Four Narrow/Wide 8 Speed MTB Chainring, 104mm 4-bolt, 32T, Black

Box Four narrow/wide chainring for use with the wide ratio Box Four drivetrain The tooth profile and thicknesses are tailored to match the … read more

your price $24.99

BuyBuyPART NUM 185806
BOX Components BUZZ Freewheel 16 tooth Black/Chrome
BOX Components BUZZ Freewheel 16 tooth Black/Chrome

Tested extensively by the Dutch National BMX Team, Damien Godet, Kory Cook, and numerous other Elite racers, Buzz freewheels combine durability with … read more

your price $89.99 + ships free

BuyBuyPART NUM 407714

We define color as the main color of the item. It may have accents or highlights in other colors.

In Store products are available to view in our showroom. In Store orders usually ship the same or next business day.

These models are available for online purchasing and can be shipped directly to you.

The number of speeds should correspond to the number of cogs on the cassette.

Our Lowest Price - This product is ineligible for additional discounts or rebates.

This is the part number or identifier for this item from the manufacturer

Steerer Tubed Threadless

Steerer Tube Diameter

We categorize fork as either rigid or suspension

The travel is the distance a suspension fork can compress.

Bar clamp diameter is the diamater of the handlebar.

Stem length is measured from the center of one clamp to the center of the other clamp. This measurement is sometimes known as the reach or extension.

S.H.I.S clamp diameter is the steerer tube diameter.

Stem angles are measured perpendicular to the clamp. For example, a 90 degree stem is straight. Sometimes, this may also be refered to as a 0 degree stem. If two measurements are listed, the stem can be flipped for angling up or down.

Stem Type

Cassette Speeds

Range

Cassette Body Type

Cassette Chain Compatibility

Thickness

Bolt Circle Diameter (BCD) is the diameter of an imaginary circle running through the center of the chainring mounting holes. It is always defined in millimeters.

Chainring Teeth

These rings can be used in the inner position.

These rings can be used in the middle position.

These rings can be used in the outer position.

These rings can be used in single ring applications.

These single chain rings have special properties which help retain the chain on the ring.

Buy this product and your entire order ships for free.

Some orders are inelligible for delivery discounts. See offer details for disqualifying products and destinations.