The EXPLORER PD-ES600 pedals are designed for rides requiring frequent engagement and disengagement, such as city touring. Light action springs allow for easy entry and exit, making the new rider feel more confident. CLEAN APPEARANCE - The PD-ES600 features a clean appearance body for use on lightweight road touring bikes. EASY RIDER ADJUSTMENT - Easy-to-adjust entry and release tension settings. SYSTEM ENGINEERED TO WORK TOGETHER - SHIMANO RT footwear is designed to match the PD-ES600.

Shimano's PD-R550 SPD-SL Pedals offer wide, stable platforms for great support and stability when you're out on the road. An extra-wide platform maximizes power transfer. Durable stainless steel tread plates reduce flex and pedal body wear. Wide bearing placement provides uniform load distribution for miles and miles of riding. - 310 grams (pair)

Ride it all with Shimano's SLX Shadow 10-Speed rear derailleur. The radical design means that the Shadow is super-low profile; it barely protrudes more than the quick release nut. Direct cable routing fires off shifts super quick and reduces the chance of the cable snagging on roots and rocks. A stronger spring keeps the body more stable when blasting through technical terrain at speed and yields a firm, crisp shifting feel. Plus, the bracket axle keeps the derailleur body from contacting your chainstay and reduces chatter so you just concentrate on the best line.

The Kovee Comp offers unobstructed movement around the saddle during challenging rides where performance is just as essential as comfort. The durable design stands up to the rigors of the ride with a unique shape that gives confidence for both seated pedaling and out-of-saddle descents. - Posture 3 Performance pelvic rotation for a balance of comfort and efficiency - Soft cushion gel padding provides ultra comfort - CRZ recess extends through the saddle nose enhancing soft tissue protection - Size Specific Curvature ensures each saddle is designed specific to its width - Unique suspended rail construction increases compliance for ultimate comfort - Strategically-placed, multi-density padding for optimal comfort and performance - inForm BioDynamic products optimize your natural movement for sustained, higher performance

SRAM’s Apex 1 drivetrain provides the gear range and the shifting simplicity to let you simply go where you want. The Apex 1 rear derailleur makes that gearing choice a reality with clean, crisp shifts, thanks to SRAM’s X-Horizon geometry and their Roller Bearing Clutch. - X-Horizon design reduces shift force, eliminates ghost shifting and chain slap - Compatible with 10-speed and 11-speed SRAM 1x road systems - With Cage Lock technology, wheel removal and installation are easier than ever - Equipped with Roller Bearing Clutch - Large upper pulley offset automatically adjusts chain gap - Weight: 314 grams - Outer Cage: Steel - Compatibility: 10-speed and 11-speed SRAM 1x road systems - Inner Cage: Steel - Cage Size: Long - Max Tooth: 42t - Pulleys: Sealed cartridge bearings - Pull: Exact Actuation

SRAM's GX 2x10 rear derailleur provides incredible shifting speed and precision. Exact Actuation technology eliminates slop and shifting variation. Roller Bearing Clutch technology delivers maximum drivetrain stability—even through the most punishing terrain. And with Cage Lock technology, wheel removal and installation are easier than ever.

The Shimano Claris ST-R2030 is a dual control brake/shift lever for Shimano 2x8 and 3x8 drivetrain applications. It features a reach adjust mechanism and Shimano's Super SLR friction-reducing technology. - Reach Adjust mechanism allows for the distance from the handlebar grip to the lever to be adjusted to suit any hand size or riding style - Super SLR technology improves braking response and modulation by reducing friction through the caliper, lever, and cable - The Dual Control Lever has both brake and shifting functions in the system to enable simple operation - Includes OT-SP41 cable housing to maximally reduce the inner cable friction for quick response to operations and effortless shifting

Shimano's Deore Shadow+ Rear Derailleur is loaded with mountain bike technology. The Shadow design tucks the rear derailleur closer in to the wheel, reducing damage from rocks, roots, and trail obstacles. When it comes to gear changes, Shimano's Dyna-Sys supplies consistent, smooth shifting across the entire cassette. And the Shadow+ clutch maximizes chain control by virtually eliminating chain slap and excess noise with its integrated cage-tensioning clutch. - Medium Cage (for 2x10 drivetrains) - Long Cage (for 3x10 drivetrains) - For use with Shimano 10-speed drivetrains - High-efficiency drivetrain for aggressive trail riding - Optimized gear combinations and ratios for trail riding - Maximum chain wrap capacity: 41T (medium cage)/43T (long cage) - Largest cog: 42T (medium cage)/36T (long cage) - Compatible with wide range cassette - Silent and stable for technical trail riding - Improved stability and chain retention longevity - Light shifting effort - OPTISLICK cable - Smooth and precise shifting - DYNA-SYS compatible system

Shimano's Deore XT Rear Derailleur uses cold-forged construction and cutting edge technology to deliver crisp shifting, real-world reliability, and trademark precision. Plus-type derailleurs use a lever-actuated clutch spring to prevent chain slap, reduce noise while on the trail, and improve chain engagement when riding over rough terrain. Sealed pulley bearings keep things spinning smoothly, and wide plate construction prevents the derailleur from getting clogged with mud and debris.

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition. - For use with 24t AM-type inner ring

Wolf Tooth ReMote Light Action has a longer lever arm than the standard ReMote and is optimal for dropper posts with a harder pull or for riders that just prefer a really light actuation feel. It reduces the force to actuate a dropper by nearly a third of the standard ReMote. Based on rider feedback and tailored to work with some posts' stiffer internal springs, the ReMote Light Action is also the choice of those with thumb injuries or reduced hand strength. - Upfront cable fixing - Large diameter ball bearing - Cable-kind clamp - Low-profile, light action - Integrated cable adjust - Breakaway axle pivot - High-traction lever - Broad compatibility

- Weight: 220g  - Body: NEP Injection-Molded - Spindle: Cromoly  - Bearings: 3 Cartridge - Springs: SWP  - Q-Factor: ±53 (mm) - Cleat: XPEDO THRUST 7 (6º Float or Fixed)

Incredibly fast, astonishingly quiet and impressively precise — fly through all 11 gears with SRAM's Force 22 Rear Derailleur. It takes advantage of SRAM's Exact Actuation technology for precision shifts every time. Carefully shaped jockey wheels work together with the sculpted chain pulley cage for lightning-fast, ultra-precise shifts, and an elastomer coating applied to the jockey wheels makes for extra quiet operation. A carbon outer cage, aluminum inner cage, and magnesium inner link keep the Force 22 at a svelte 178 grams.

The SL-700 Trigger Shifters maintain the legacy of SRAM Road shifting performance in a flat bar design. 11-speed Exact Actuation provides crisp, dependable shifting and is compatible with SRAM’s 2x11-speed road components (sold separately). • Left (front): 2-speed • Right (rear): 11-speed

The Box Three E-Bike Cassette offers high gears with more teeth to withstand the rigors of modern E-Bike riding. Adding an extra tooth to each of the three highest gears provides increased durability and decreased wear by distributing the load over a larger area! The Box Three E-bike cassette draws from both of its Box One and Box Two siblings to create a sensible all-rounder. All cogs are stamped from steel and subsequently, the larger ones are pinned to steel spiders. The main difference here versus Box Two is the use of additional weight-reducing holes on the cogs. FEATURES - Our Best All-Rounder Cassette - Steel Stamped Cogs - Steel Stamped Spiders - Ultra-Wide Ratio with Consistent Progression COMPATIBILITY - Box One Prime 9 Chain 126L DLC Black - Box Two Prime 9 126 Link Chain Nickel - Box Three Prime 9 126 Link Chain Polished - Box One Prime 9 Rear Derailleur - Box Two Prime 9 X-Wide Rear Derailleur Black - Box Three Prime 9 X-Wide Rear Derailleur Black - Box One Prime 9 Single Shifter Black - Box Two Prime 9 Single Shifter Black - Box Three Prime 9 Single Shifter Black

- Replaces standard BB90/95 press-in bearings commonly found on Trek bicycles with a solid, unified thread-together bottom bracket interface - Thread-together bottom brackets provide a secure and stable shell interface for smoother operation and extended bearing life - OS versions are designed for use in frames with worn-out, oversized bottom bracket shells - Low-friction dual seals protect the bearings from harmful contaminants - Sealed premium bearings are serviceable - Models available for both Shimano HTII 24mm and SRAM GXP 22/24mm spindles - Requires a special tool for installation (P/N# 610756)

- Shimano 105 R7000 Series CS-R7000 10-speed cassette - Average weight: 284 g (11-28T), 304 g (11-30T), 320 g (11-32T), 269 g (12-25T) Combinations: - 11 – 28T: 11-12-13-14-15-17-19-21-23-25-28T - 11 – 30T: 11-12-13-14-15-17-19-21-24-27-30T - 11 – 32T: 11-12-13-14-16-18-20-22-25-28-32T - 12 – 25T: 12-13-14-15-16-17-18-19-21-23-25T

• 6/7/8-speed MTB crankset • Square taper interface • Alloy arms • Replaceable steel chainrings • Does not include BB • Bolt Pattern: 104/64 x 4-bolt

Wheels Manufacturing FSA PF30 Adapter for 24mm Spindle Cranks adapts 24mm Spindle Cranks (Shimano, FSA, etc.) to work on Pressfit 30 frames with FSA's PF30 bottom bracket installed. Simply tap the adapters into the 6806 bearing in the BB shell, install the spindle and cranks. Use our Crank Spindle Spacers to adjust your chainline, or take up any side-to-side movement in your cranks. - Machined engineering-grade Delrin - 48g/pr *NOTE: The stock bottom bracket seals must be removed before installing the Pressfit 30 adapter

SRAM's X5 shifters feature Exact Actuation 1:1 cable pull ratios for precise, dependable shifting. Crafted with lightweight aluminum, the X5s are built tough to handle all your off-road endeavors.

PD-EH500 pedals FEATURE - One side SPD, the other side flat - Light action binding makes frequent stepping-in & out easier - Better grip on flat side for wet condition BENEFIT - Convenient road touring pedal - Optimized for urban riding - Multi-condition - Best match with CT or MT shoes

Discover the world of clipless pedals with the KEO CLASSIC 3. The easily adjustable tension makes clipping in and out smooth and simple, with the ability to increase tension to fully appreciate the pedal and all its advantages. - Technology: Spring - Cleats: Keo Grip - Retention: 8 to 12 - Body: Composite - Spindle: Chromoly - Platform Material: Composite - Platform area: 400mm² - Platform width: 50mm - Q Factor: 53mm - Stack height + cleats: 17.8mm (11.5 + 6.3mm) - Weight (pedal): 140g - Weight (pair + cleats): 350g

- Replaces standard BB90/95 press-in bearings commonly found on Trek bicycles with a solid, unified thread-together bottom bracket interface - Thread-together bottom brackets provide a secure and stable shell interface for smoother operation and extended bearing life - Low-friction dual seals protect the bearings from harmful contaminants - Sealed premium bearings are serviceable - Models available for both Shimano HTII 24mm and SRAM GXP 22/24mm spindles - Requires a special tool for installation (P/N# 610756)

Ritchey's 4-Axis Adjustable Stem features a precision 3D-Net shaped forged shaft that interconnects with a precision broached clamp to create the strongest, lightest, most secure adjustable stem available. - Stainless steel bar and steerer clamp bolts - Stack Height: 40 - Weight: 219g

When you choose to ride, advancement means having a group that’s always ready. Apex 1 is that group. As a left lever for your Apex 1 setup, or paired for single speed adventures, the Apex mechanical brake lever features the same ErgoFit ergonomic design introduced on SRAM RED but delivered in a sleek, forged aluminum offer. - ErgoFit design from SRAM RED improves grip and finger wrap - Reach Adjust for a perfect fit - Durable, forged aluminum lever blade with laser texture for a positive touch

The SRAM NX X-HORIZON rear derailleur provides the same smooth, reliable shifting action as XX1—from the larger upper pulley offset to the 12-tooth X-SYNC pulley wheels. By eliminating unwanted chain movement, X-HORIZON shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with Cage Lock technology, wheel removal and installation are easier than ever. - X-HORIZON design that reduces shift force, ghost shifting and chain slap - 12-tooth X-SYNC pulley wheels - Fully compatible with all SRAM MTB 1x drivetrains - Most affordable fully featured 1x rear derailleur in the industry - Speeds: 11-speed - Weight: 322 grams - Color: Black - Compatibility: X-ACTUATION - Bearings: Steel - Cage Size: Long - Max Tooth: 42

SRAM's PG-1030 10-Speed Cassette is a great choice. It's constructed of light and durable materials and boasts SRAM's PowerGlide tooth profiles and shift ramps for quick and positive gear changes every time. This trick cassette is available in four configurations perfect for riding off road, including one with a 36-tooth largest cog for super-easy climbing.

The Shimano 105 R7020 Dual Control Levers bring the all condition confidence of hydraulic disc brakes and refined ergonomics to the quick and intuitive shifting cyclists expect from Shimano. Features: - Great ergonomics cascaded from ULTEGRA - Greater reach adjust range - Redesigned internal shifting unit - Greater rider control in all conditions - Quick and intuitive rear shifting operation - Same light shifting operation as top tier systems - Lighter front shifting when paired with FD-R7000 (compared with previous generation)

These versatile pedals feature adjustable Shimano SPD bindings on one side and standard cages on the other: the perfect combination for riders who ride with cleated cycling shoes and also with regular shoes. With sealed bearings and chromoly axles, the M324s are durable and practical all-around pedals. - Weight: 533 grams (pair)

If you're looking for a high-quality, precision-shifting, light front derailleur, you've found it in Shimano's Ultegra. It's made of cold-forged aluminum with their wide-pivot design that stops flex for smooth, fast and exact shifts, even under load. And this fine derailleur is built tough for reliability and durability, too.

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 40-Series headsets. • Technical Description: ZS44/28.6/H8/K|ZS56/40/H4/K • Top Type: ZS - ZeroStack • Top Head Tube Inside Dia.: 44.00mm • Stem Clamp Dia.: 28.6mm • Top Stack Height: 8mm • Top Bearing Type: Black Oxide, Sealed • Bottom Type: ZS - ZeroStack • Bottom Head Tube Inside Dia.: 55.95mm • Crown Race Seat Dia.: 39.79mm • Crown Race Type: Steel, Face-Sealed • Bottom Stack Height: 4mm • Bottom Bearing Type: Black Oxide, Sealed • Material: 6061 aluminum • Weight: 109g

Put your finger on the pulse of sharp, dependable shifting with the SRAM X1 trigger shifter. Built for precise and swift shifting across SRAM's wide range 11-speed cassette, the X1 trigger shifter brings championship technology to every ride. • SRAM 1X X-ACTUATION for precise and dependable 11-speed performance • Zero Loss Engagement for fastest shifting • MatchMaker X compatible • Aluminum cover and forged aluminum pull lever • Colors: Black

SRAM's X0 Front Derailleur is made from cold-forged aluminum and chrome-plated steel for exceptional reliability and a race-worthy weight. It boast’s SRAM’s X-Glide technology for super-smooth, lightning-quick shifting even under load.

SRAM's X0 Front Derailleur is made from cold-forged aluminum and chrome-plated steel for exceptional reliability and a race-worthy weight. It boast’s SRAM’s X-Glide technology for super-smooth and lightning-quick shifting even under load. This 38/36T maximum chainring size version is the one you want if you are running a low-range double-ring setup.

Thanks to Campagnolo's Ultra-Drive system, the Veloce Cassette offers precise, fluid shifting. The teeth are carefully machined and treated for flawless gear changes and outstanding durability. Plus, the special cog patterns interface perfectly with the rest of Campy's drivetrain components for outstanding shifting.

A comfort saddle with a patented fluid technology that moves freely with you as you pedal for less pressure and more comfort. Bontrager's Boulevard Fluid saddle puts your comfort first with patented fluid technology that moves with you to reduce pressure while you're pedaling. The full cutout design and air foam deliver a difference you can feel on casual cruises through your town and neighborhood. Plus, it has an integrated mount for a tail light! Product details - Fluid adds comfort by moving with you as you pedal to alleviate pressure - Fluid is better than gel at reducing pressures, showing an average reduction of over 20% in peak pressure compared to gel alone - Full cutout provides targeted support and soft-tissue relief - Dual-density shell and air foam construction is soft yet supportive - Blendr attachment allows for integrated rear light mounting - inForm saddles utilize the latest in biomechanical research to maximize performance and rider comfort - The Unconditional Bontrager Guarantee offers 30 days to love it, or we'll take it back

Shimano Ultegra R8010 direct-mount type brake caliper. - Direct mount brake - Direct brake mounts connect directly to the frame to reduce redundant parts and increase overall braking performance - Sleek design - Narrower gap between arms - Wider clearance with larger tire sizes - Compatible with wider 28c tire size - Model Number: BR-R8010-F - Series: Ultegra - Brake Type: Direct mount type - Average Weight: 174 grams

Steel single sprockets with galvanized finish. - Lockring included - Cassette Body Type: Campagnolo 9 Speed - Drivetrain Speeds: 9 - Weight: 212 grams (12-23)

Are you running linear-pull brakes on a bike with drop bars? You need Cane Creek's Drop V Brake Levers. They have the correct cable pull to properly activate linear-pull brakes. There's also a brake release button on the aluminum lever which facilitates easier wheel changes.

- Enables the use of a BB386EVO (30mm spindle) crankset on a 68mm English threaded frame

• New asymmetrical tooth profiling and more upshift and downshift zones yield instantaneous, smooth and quiet shifting • CNC-machined from super-hard AL-7075 to maximize wear resistance and impact strength • Three times stiffer than Team and Race rings • 3x10 chainrings are compatible with 9-speed drivetrains if a complete set is used

SRAM's Centerline Rotor delivers consistent, quiet and powerful braking. The rotor has a consistent center of friction throughout rotation to minimize vibration, so the only thing you'll notice about your brakes is how well they perform.

Experience the precise, positive feel of SRAM with their X7 Trigger Shifter Set. They're perfect for casual and serious riders alike thanks to their aluminum and composite construction that both reduces weight and boosts strength. And, the X7s feature SRAM's 1:1 actuation ratio for the ultimate in crisp shifting.

Shimano 105 7000-series components offer much of the same technology and functionality as their top-level 11-speed drivetrains at a more budget-friendly price point. The RD-R7000 rear derailleur provides stable shifting performance and wide-range compatibility in two different cage lengths. The Shadow RD design limits the amount the derailleur sticks out from the side of the bike, reducing the risk of it making contact with objects and bending. - Maximum cog size: 30t (SS) / 34t (GS) - Total capacity: 35t (SS) / 39t (GS) - Pulleys: 11t - Chain compatibility: HG-EV 11-speed/HG-X11 - Direct mount compatible

Shimano Deore M6000 Series 10-speed cassette. - Cogs: 11-13-15-17-19-21-24-28-32-36T

Super Narrow SIL-TEC HG-X11 Chain (11-speed) FEATURE - Rear drive Smooth driving without noise - Front drive Preserve chain security at cross chainline - Front & Rear Shift Smooth and reliable shifting BENEFIT - HG-X11 special asymmetric plate design for 11-speed - Weight: 247g (114Link) - SIL-TEC on Plate/Roller - Hollow pin - Weight: 247g (114Link)

Lighter, stronger, and better looking than our original Guiderings; the Guidering SL is intended for use on TRS, LG1, and legacy e*thirteen cranks. The Guidering SL is -8mm offset. This offset will achieve both boost (52mm) and non-boost (49mm) spacing on e*thirteen cranks that feature adjustable chainline (2019 and newer TRS & LG1). On legacy and XCX cranks the Guidering SL will achieve a 49mm non-boost chainline. - Direct Mount chainring for TRS and LG1 cranks - Updated M3 narrow-wide tooth profile eliminates chain noise, and decreases overall system wear while retaining chain - 10/11/12 speed. Compatible with both Shimano and SRAM 12-speed drivetrains - Allows both Boost 148mm and non-boost 142mm chainline on adjustable TRS and LG1 cranks SL Chainrings are not compatible with Helix cranks. Helix cranks require Helix rings.

SRAM's X0 2x10 Front Derailleur is made from cold-forged aluminum and chrome-plated steel for exceptional reliability and a race-worthy weight. It boast’s SRAM’s X-Glide technology for super-smooth and lightning-quick shifting even under load.

The X-TRACK is LOOK's entry level off-road pedal, but does not mean technology is left aside. The aluminum body and Chromoly+, double-sealed axles are robust and ensure total fluidity thru the pedal stroke. Tension can be quickly and easily adjusted from 6 thru 14. - Technology: X-Track - Cleats: X-Track Cleat included (Easy Cleat available separately) - Cleats standard: SPD compatible - Retention: 6 to 14 - Body: Aluminum - Spindle: Chromoly+ - Platform area: 350mm² - Platform width: 57mm - Stack height + cleats: 16.8mm (10.7 + 6.1mm) - Weight (pedal): 200g - Weight (pair + cleats): 450g - Float angle: 6° - Release angle: 13°

Shimano XT CRM80 1x11 Chainrings - Hollow gear construction for optimized rigidity, weight, and rigidity - Durable teeth using plated steel construction supported by a carbon composite (CFRP) carrier body - Dyna-Sys11 HG-X11 11-speed chain compatible - Chainring BCD: 96 Shimano Asymmetric - Color: Black - Drivetrain Speeds: 11 - Material: Steel/Carbon - Ring Position/Type: Chain Retaining Single Ring - Tooth Count: 30

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition. - Nickel plated Duraluminum for durability (SIS compatible) - Always match E type large ring with E type small rings

FSA Pro Road Chainrings deliver flawless shifting for any road drivetrain. - Precision CNC machined AL7075/T6 alloy

Downhillers and freeriders need tough gear that can handle the abuse of big air and huge drops. TruVativ's Giga Pipe Team DH Bottom Bracket uses four sealed cartridge bearings to provide smooth pedaling season after season. For serious strength, the Giga Pipe boasts CNC-machined aluminum cups and a stiff chromoly spindle, too.

Smooth, controlled braking is yours with Avid's G2 CleanSweep Rotor. It utilizes cross-drilled technology to dissipate heat and cut weight, giving you a consistent feel at the lever and predictable speed control in all conditions.

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek headsets. The 40 Series has light, tough, and beautiful machined 6061 T6-aluminum cups that are internally relieved for even more gram shaving. You also get Cane Creek's corrosion-resistant black-oxide sealed bearings and quality seals throughout to keep the grease in and the dirt out, including Cane Creek's Clip Seal that completely seals the top assembly.

Sometimes less is more. With 10 speeds, an 11-48T range, and evenly spaced gear steps, the ADVENT X cassette allows riders to shift less often to find the right gear, while still having enough range to ride what they want. Fewer cogs also means less weight and a wider chain for better mud shedding. It even fits on standard 10-speed freehub bodies so you don't need to buy new wheels for no reason. In short, it's everything you want in a high-end drivetrain. - 11-48T range with even gear steps for predictable gear changes - Hardened steel cogs are optimized for eBike compatibility - ED black with anodized surface finish - Continuously forged precision cogs

Profile's Ultra FR is a tough riser bar that gives you extra control in technical sections and confidence on rough descents. It's made of double-butted 6061-T6 aluminum, which offers superior strength and stiffness and weighs next to nothing.

Here For The Party A party's just not a party until Chester shows up. This burly nylon-composite pedal is big on features, small on price, and fully ready to tear up some trail. A concave body, replaceable traction pins, and a cro-mo sealed axle are all representing. The Full Meal Deal A slim yet durable nylon-composite body is accented with a concave design, built-in traction treads and 8 replaceable traction pins per side. Not Just Another Axle Made to stand up to punishment, the durable sealed cro-mo axle rolls on a completely serviceable bearing + bushing set-up. Bling For Your Bike No build is complete without sick looking color-Coordinated pedals. Chester pedals come in multiple vibrant colors to choose from. Specs - Platform Height: 18.4mm - # of Pins: 16 SHCS hex traction pins per pedal (8 per side) - Platform L x W: 101 x 110mm - Axle Material: Chromoly Steel - Body Material: Nylon Composite - Material: Nylon Composite - Weight: 360g

Original equipment on SRAM and Truvativ cranks, they also work well with other drive trains. - 7000 series aluminum provides strength and durability

SRAM's GXP PressFit Road Bottom Bracket Cups are the premium choice for getting the most out of every pedal stroke. They feature smooth bearings that keep drag to a minimum and seals that keep debris out. Plus, these BB cups press directly into the frame without having to be threaded in for reduced weight and enhanced durability.