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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 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 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 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 Three V-Brake, 85mm, Black
Box Three V-Brake, 85mm, Black

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 753835
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 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

your price $309.99 + ships free

BuyBuyPART NUM 562991
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

your price $309.99 + ships free

BuyBuyPART NUM 566071
BOX Three Prime 9 X-Wide Single Shift eBike Groupset - Includes X-Wide Rear Derailleur, 11-50t Cassette, Single Shift Shifter, Prime 9 Chain
BOX Three Prime 9 X-Wide Single Shift eBike Groupset - Includes X-Wide Rear Derailleur, 11-50t Cassette, Single Shift Shifter, Prime 9 Chain

Box's Prime 9 Technology is a counter-intuitive philosophy based on the less is more theory. It embraces range without adding complexity. The outcome … read more

your price $214.99 + ships free

BuyBuyPART NUM 158747
Box Four 8S Wide Single E-Bike Group Set, Matte Black
Box Four 8S Wide Single E-Bike Group Set, Matte Black

Wide rangle 8 speed group based on the same simple principle of the Prime 9 groups Includes 8s single shift derailleur, trigger shifter … read more

your price $166.99 + ships free

BuyBuyPART NUM 545816
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 Three Prime 9 Wide Multi Shift Group Set, Matte Black
BOX Three Prime 9 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 $209.99 + ships free

BuyBuyPART NUM 116867
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
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 Four Prime 9 8-Speed Groupset, Multi Shift
BOX Four Prime 9 8-Speed Groupset, Multi Shift

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

your price $166.99 + ships free

BuyBuyPART NUM 319303
BOX Two Prime 9 Speed Cassette, 11-50t, Black
BOX Two Prime 9 Speed Cassette, 11-50t, Black

Prime 9 Technology offers fewer gears with wider spacing to ease set-up, provide a better chain line, and result in less wear and tear Ultra-wide … read more

your price $109.99 + ships free

BuyBuyPART NUM 642269
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 Three Prime 9 eBike Cassette - 9-Speed, 12-46t, Black
BOX Three Prime 9 eBike Cassette - 9-Speed, 12-46t, 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 753643
BOX Three Prime 9 Speed Derailleur, X-Wide Cage, Black
BOX Three Prime 9 Speed Derailleur, X-Wide Cage, Black

Prime 9 Technology for less derailleur travel and better chainline, less wear, and improved lifespan Box Three features: Limited Slip Clutch … read more

your price $83.99 + ships free

BuyBuyPART NUM 665399

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

Limited quantities remaining.

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

Chainring Teeth

Buy this product and your entire order ships for free.

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