Paul Component Korea | Handmade Bicycle Parts from Chico, California

A lathe at Paul Component in Chico

Chico, California · Since 1989

Paul Component Engineering

Made in Chico

They chose the hard way. Bicycle parts machined by hand in a small shop in Northern California.

Paul Klamper flat mount disc brake

Disc Brake

Klamper

Klamper

A mechanical disc brake that stops with conviction, no hydraulics, just a cable

Paul Neo-Retro cantilever brake

Cantilever Brake

Neo-Retro

Neo-Retro

A wide cantilever machined anew from the Mafac Tandem geometry

Paul Boxcar stem

Stem

Boxcar

Boxcar

A box-section stem machined from 2024 aerospace aluminum

01

Brand

PaulChico, California · Since 1989

Parts made by people
who chose
the hard way.

Paul Component Engineering is a bicycle parts maker that engineer Paul Price started in 1989 in Chico, a small city in Northern California. After a year and a half as an engineer in San Francisco, he quit, moved to Chico and bought a run-down house, chosen above all for a garage big enough for his machines.

His first machines were a mill and a lathe, and the only employee was Paul himself. The company began when an Austrian businessman saw a prototype of his first product, a seatpost quick release, and placed an order. Today, on the site of an old Texaco depot on the edge of Chico, every part is machined in-house on CNC machines and old hand-operated tools.

1989An American parts maker that began in a Chico garage
211gWeight of one Klamper disc brake caliper
200Parts machined per day in the Chico shop in 2015
Made in USAEvery part made in Chico from American aluminum
Macro shot of a Paul MiniMoto brake

The Hard Way

Nice parts, lovingly handmade in Chico.

At Paul, raw aluminum stock is cut to rough size, machined on CNC mills, tumbled to finish and packed into a box. When The Radavist visited in 2015, the roughly 2,000 square foot shop was turning out about 200 parts a day, while a prototype machine in the corner milled parts nobody had seen yet.

New parts are tested by riding them in Chico's Bidwell Park. Some of the gnarliest mountain bike trails in the country are a short ride from the shop, and many of the crew ride to work. A day in Chico ends with a group ride on the trails and a dunk in the river.

Paul Klamper disc brake

DesignClean slate

Every part starts from a clean slate. The Klamper took three years to develop, and the caliper body alone went through countless drawing revisions and around 20 prototypes.

Paul Racer centerpull brake

MachiningMade in Chico

6061 and 2024 aluminum is machined and finished in-house. Every scrap of aluminum is forged in the USA, and every part is made in the USA.

Paul MiniMoto brake

TestingBidwell Park

The test lab is the trail near the shop. Only parts that Paul and the crew have ridden and refined go on to production.

Paul Neo-Retro cantilever brake detail

ServiceFor a lifetime

Sealed cartridge bearings, replaceable pivots and published exploded drawings. With small parts sold separately, these are parts you service and keep for life.

Anodized in ChicoStandard finishes are black, purple and silver anodizing, plus polished. Other colours are limited runs that vary by product and season

  • Black
  • Silver
  • Polished
  • Purple
  • Blue
  • Pewter
  • Gold
  • Orange
  • Red
  • Pink
  • Green
  • Clear
Paul Neo-Retro in silver
Paul Love Lever

Founder · Paul Price

“Pursuing perfection is what has always mattered. So by default, a traditional, predictable life never did.”

In junior high, Paul was already making skateboards from oak in his parents' garage. Raised by an artist and an engineer, always taking things apart, he came to Chico in 1988 and went to work at Mountain Goat, the shop of legendary Chico framebuilder Jeff Lindsay. His job was grinding fillet-brazed joints, but as Lindsay remembers it, what Paul really wanted to make even then was quick releases.

Even now that the company has grown, Paul stays late in the small personal shop next to the production floor, machining prototypes. It is filled with old manual machines such as a WWII-era shaper and Kearney & Trecker mills, and from the ceiling hang the bikes he built each time a new hub, brake or wheel standard came along.

Each year Paul has hosted Paul Camp, inviting journalists and framebuilders to Chico to tour the shop and ride the trails together. Rather than a flashy trade show booth, he chose to show the place where the parts are made and the trails where they are tested.

Paul Component Engineering, Story

Paul Component Engineering

You do things the hard way. Therefore, you do things that matter.

View at Rubi Workshop →

The Range

Every part, made in Chico

From brakes to hubs, every part machined in the same shop, the same way.

Go to Rubi Workshop →
01
KlamperMechanical Disc Brake

Cable-actuated ball-and-ramp disc brake. Post mount and flat mount.

Weight
211g
Pull
Short · Long · Campagnolo
02
Neo-RetroCantilever Brake

Wide cantilever in the spirit of the Mafac Tandem, with generous mud clearance.

Weight
100g
Pull
Short
03
Touring CantileverCantilever Brake

Cantilever with upswept arms for a slim profile that stays clear of panniers and heels.

Weight
123g
Pull
Short
04
RacerCenterpull Brake

The Mafac centerpull, machined anew. Room for wide tires and full fenders.

Weight
120g
Reach
57~72mm
05
Racer MediumCenterpull Brake

A lighter, stiffer Racer with shorter arms.

Weight
113g
Reach
47~57mm
06
MiniMotoShort-Pull V Brake

Direct-pull brake with short arms matched to road levers. No cable hanger needed.

Weight
149g
Pull
Short
07
MotoliteLinear-Pull Brake

Linear-pull brake with oversized sealed pivots and square-wire springs.

Weight
137g
Pull
Long
08
LeversBrake Levers

Canti Lever, Love Lever, Duplex, Cross, Reverse and E-Lever. Six levers to match every pull.

Weight
56g~
Clamp
22.2mm and more
09
BoxcarStem

Box-section stem machined from 2024 aerospace aluminum. Stainless Torx bolts.

Weight
118g~
Length
35~110mm
10
Tall and Handsome · ElegantSeatpost

Two-bolt seatposts that set the angle on spherical washers. 26mm and zero setback.

Diameter
27.2~31.6
Length
360mm
11
Word · FHubHubs

The Word, descended from the first single speed MTB hub of 1996, and its matching front hub.

Weight
200g
Spacing
135mm
12
100% Pure Paul CranksCrankset

Square taper crank machined from 2024 aluminum. 3-bolt direct mount chainring.

Weight
516g
Length
155~180mm

02

Disc Brake

KlamperPost mount · Flat mount

No hydraulics.
All the power.

The Klamper is a mechanical disc brake Paul designed from a clean slate. The goal was a brake that is reliable with just a cable and no fluid, easy to adjust and serviceable on the road. After three years of development the first run of 300 was made in Chico in 2015, and today it is Paul's signature part on gravel and touring bikes.

It uses the proven ball-and-ramp principle. Paul added bigger balls and hardened steel contact faces for smoother action and more pad travel. A light start to the lever stroke that firms up and bites hard at the end, with power that is easy to modulate, is the Klamper's character.

01

Bigger balls, harder ramps

Larger balls give smoother action and more pad travel. Where the balls meet the ramps, the steel is hardened.

02

Needle roller bearing

Three hardened steel pins locate the pad actuator, and a flat needle roller thrust bearing takes the load instead of the usual plastic washer.

03

A backing plate with fangs

Fang-shaped reinforcements on the inner backing plate and extra material only where the outer body needs it make for a stiffer caliper.

04

Click-stop pad adjustment

The pad adjusters click into detents located by spring ball plungers. Set the pad gap by hand without tools, and it stays put.

Post Mount · I.S.

Post Mount Klamper

Mounts directly to post mount frames and forks, and to I.S. mounts with a Paul adapter. The original Klamper.

Weight
211g
Mount
Post mount
Pads
Kool Stop KS-D296S
Pull
Short · Long · Campagnolo
Flat Mount

Flat Mount Klamper

The flat mount version for today's gravel and road frames. Mounting bolt length depends on your frame and adapter, so it is chosen separately.

Weight
211g
Mount
Flat mount
Pads
Kool Stop KS-D296S
Pull
Short · Long · Campagnolo
Actuator Arm

Short · Long · Campy

Short pull for Shimano and SRAM road levers and the Canti Lever, long pull for the Love Lever and Cane Creek Drop V, and a super-short arm for Campagnolo. Swap just the arm to move to different levers.

Short
Road · Canti Lever
Long
Love Lever · Drop V
Campy
Ergopower
Swap
Arm kit

Klamper · With Paul leversBlack, silver, purple, polished and more

Paul Klamper post mount
Post mount
Paul Klamper flat mount in black
Flat mount · Black
Paul Canti Lever, the match for a short-pull Klamper
Short pull · Canti Lever
Paul Love Lever, the match for a long-pull Klamper
Long pull · Love Lever
A bicycle built with Paul parts

Bed-in

It really bites by the third ride

New pads need a few short rides to bed in. Paul says the Klamper really starts to bite around the third ride. Kool Stop sintered metal pads (KS-D296S) come standard, and it takes SRAM and Avid MTB pattern pads.

Paul does not make rotors. The Klamper works well with Shimano Ice-Tech, SRAM, Avid and most others, though floating rotors with large buttons can rub the caliper. Rubi Workshop will put together the right rotor, adapter and lever combination for you.

Specification

Paul Klamper

Mount
Post mount (I.S. adapter sold separately) / Flat mount
Weight
211g (one caliper, with pads)
Material
6061 aluminum, heat-treated 12L14 steel
Cable pull
Short pull (Shimano and SRAM road levers, Canti Lever) / Long pull (Love Lever, Cane Creek Drop V) / Campagnolo
Pads
Kool Stop sintered metal KS-D296S (Avid Elixir and SRAM MTB pattern)
Finish
Anodized black, purple or silver, polished, with coloured adjuster options
Sold as
Per wheel, rotor and adapter sold separately
Made in
Chico, California, USA

03

Rim Brakes

Cantilever · Centerpull · VNeo-Retro, Racer, MiniMoto

Classic shapes,
machined anew.

Since the Stoplight Brakes made in Paul's first Chico machine shop in 1992, brakes have always been what Paul makes most. Even in the disc brake era, Paul has not let go of cantilevers and centerpulls, because steel touring bikes, classic road bikes and 650B randonneurs still look and work best with them.

The Neo-Retro and Racer rework the classic shapes of France's Mafac with modern materials and adjustability. T-section arms resist flex under load, while sealed pivots and adjustable springs keep them smooth and centred for years. All come with salmon Kool Stop Thinline pads.

Cantilever · Wide

Neo-Retro

A wide cantilever that carries on the Mafac Tandem geometry. Long arms give strong leverage and generous mud clearance for cyclocross and touring.

Weight
100g
Pull
Short
Mount
Canti boss
Pads
Kool Stop Thinline
Cantilever · Narrow

Touring Cantilever

The same construction as the Neo-Retro with upswept arms for a much slimmer profile. Ideal for bikes with large panniers or tight heel and calf clearance.

Weight
123g
Pull
Short
Mount
Canti boss
Pads
Kool Stop Thinline
Centerpull · Long Reach

Racer

The Mafac centerpull, re-machined on CNC. Widely spaced pivots leave room for big tires and full fenders together.

Weight
120g / 157g
Reach
57 ~ 72mm
Mount
Braze-on · Center
Pull
Short
Centerpull · Medium Reach

Racer Medium

A lighter, sharper Racer with short, stiff arms. A 32mm tire and 45mm fender fit between the arms.

Weight
113g / 154g
Reach
47 ~ 57mm
Mount
Braze-on · Center
Pull
Short
V Brake · Short Pull

MiniMoto

A direct-pull brake with arms shortened to match the leverage of ordinary road levers. Simple to install with no cable hanger, and it has a quick release.

Weight
149g
Pull
Short (no Campy)
Tire
~ 44mm
Mount
Canti boss
V Brake · Long Pull

Motolite

Oversized sealed pivots and independently adjustable square-wire springs. Long arms let the pads sit higher, so it is also used to fit 650B or 700C wheels to a 26 inch frame.

Weight
137g
Pull
Long
Mount
Canti boss
Pads
Kool Stop Thinline

Cantilever · CenterpullSold per wheel

Paul Neo-Retro in matte black
Neo-Retro · Matte black
Paul Touring Cantilever in silver
Touring · Silver
Paul Racer in black
Racer · Black
Paul Racer Medium in silver
Racer Medium · Silver

V Brake · ColoursAnodized black, purple or silver, polished and more

Paul MiniMoto in silver
MiniMoto · Silver
Paul Motolite
Motolite
Paul Racer Medium in purple
Racer Medium · Purple
Paul MiniMoto in blue
MiniMoto · Blue
A bicycle with Paul Racer brakes

Racer · Braze-on

A brake chosen together with your framebuilder

The braze-on Racer mounts directly to centerpull bosses that the framebuilder brazes on in a specific position. Boss placement sets the reach for 700C, 650B or 26 inch wheels, and with no bridge it is stiffer and cleaner.

Stock frames use the center mount version, which bolts through the single brake hole above the tire. It suits long-reach classic frames and randonneurs with fenders. In a Rubi Workshop custom build, we decide boss placement and brakes together from the frame stage.

Paul MiniMoto in matte black

MiniMoto

A V brake for drop bar levers

Ordinary V brakes are designed for long-pull flat bar levers and do not work with road levers. The MiniMoto shortens the arms to match road lever leverage. Unlike a cantilever, there is no separate hanger or straddle wire, and the profile is narrow.

Springs adjust independently left and right, and the pivots run on sealed stainless bushings. There is a quick release for wheel removal, and it clears 44 to 45mm tires without fenders. It is not compatible with Campagnolo levers.

04

Brake Levers

Canti · Love · Duplex · CrossShort pull, long pull, both

Half of every brake
starts at your fingertips.

A lever and brake only stop properly when the amount of cable they pull, the pull, matches. Cantilevers, centerpulls, the MiniMoto and the short-pull Klamper take short-pull levers; V brakes, the Motolite and the long-pull Klamper take long-pull levers.

Every Paul lever is machined from 6061 aluminum in Chico. Sealed cartridge bearings or stainless pivots make them solid with no play, and large barrel adjusters let you set cable tension by hand.

Paul Canti Lever
Short Pull · Flat Bar

Canti Lever

Flat bar lever for cantilever, centerpull, sidepull, mini V and short-pull disc brakes. Dual sealed bearing pivot, standard or short reach.

Weight
134g / pair
Clamp
22.2mm
Paul Love Lever
Long Pull · Flat Bar

Love Lever

Lever for V brakes and long-pull disc brakes. Two-finger Compact or three-finger 2.5, with a 5mm reach set screw.

Weight
125g / 137g
Clamp
22.2mm
Paul Duplex Lever
Dual Cable

Duplex Lever

One lever pulls two cables. It started in bike polo, where riders brake while swinging a mallet, and it fits either hand.

Weight
94g
Pull
Short · Long
Paul Cross Lever
Inline · Drop Bar

Cross Lever

Inline lever for the tops of a drop bar. Move the pivot hole to suit short-pull or long-pull brakes.

Weight
140g
Clamp
31.8mm
Paul Reverse Lever
Bar End

Reverse Lever

A lever that plugs into the end of the bar, pointing back. Ambidextrous, with a movable pivot for short or long pull.

Weight
80g
Fit
Bar ID 19 ~ 25mm
Paul E-Lever
Single Finger

E-Lever

A small single-finger short-pull lever. With less leverage, it is recommended as a secondary brake alongside a fixed gear or coaster brake.

Weight
56g
Clamp
22.2 / 23.8mm

05

Stem · Seatpost

Boxcar · Tall and HandsomeMachined from 2024 aluminum

Holding bar and saddle
firmly in place.

The Boxcar stem is machined from 2024 aerospace aluminum. As the name suggests, its rounded box section resists twisting, and the bolts are stainless T25 Torx. Torx was chosen because it is harder to overtighten than a hex key, which protects carbon bars and steerers.

The Tall and Handsome and Tall and Elegant seatposts hold the saddle with two bolts and spherical stainless washers. One screw fine-tunes the angle, and loosening both moves the saddle fore and aft. Tilt range is about 15°, and oval carbon rails are welcome.

Paul Boxcar stem
Stem

Boxcar

35 to 110mm, at 0°, 7°, 12° and 15°. 31.8 and 35.0 handlebar clamps.

Weight
118 ~ 203g
Steerer
28.6mm
Stack
36mm
Paul Tall and Handsome seatpost
Seatpost · Setback

Tall and Handsome

26mm setback. Ideal for riders who need the saddle further back, such as those on short-railed Brooks saddles.

Weight
320 ~ 396g
Setback
26mm
Length
360mm
Paul Tall and Elegant seatpost
Seatpost · Inline

Tall and Elegant

Inline post with zero setback. The same two-bolt head sets the angle on brass trunnions.

Weight
327 ~ 402g
Setback
0mm
Length
360mm
Paul quick release seat collar
Seat Collar

Quick Release Collar

A collar that carries on Paul's very first product, the seatpost quick release. 6061 and 7075 aluminum with stainless steel.

Weight
53g
Size
30.0 ~ 35.0mm
Post
27.2 · 30.9 · 31.6

06

Hubs · Drivetrain

Word · FHub · CranksSingle speed since 1996

The hub first made
for single speed mountain bikes.

The Word is a rear hub descended from the first single speed MTB hub Paul made in 1996. Back when there were almost no hubs for people riding mountains without gears, Paul made one with wide flange spacing that allows a dishless wheel build.

The hub body is 6061 and the axle 7075 aluminum. The sealed cartridge bearings are user-adjustable with an adjuster ring, and the Disk Word swaps between quick release, bolt-on and 12mm thru-axle. A hub to ride, service and rebuild for the long haul.

Paul Word single speed hub
Rear · Single Speed

Word

135mm single speed hub with freewheel threads (1.37 x 24tpi). Cinch-bolt adjuster ring.

Weight
200g
Spacing
135mm
Holes
28 · 32 · 36
Paul Disk Word hub
Rear · Disc

Disk Word

6-bolt disc mount. Quick release and bolt-on at 135mm, 12mm thru-axle at 142mm.

Weight
214 ~ 273g
Spacing
135 · 142mm
Chainline
52mm
Paul FHub, polished
Front

FHub

Light front hub with precisely machined bearing bores and sealed bearings. Quick release or bolt-on.

Weight
126 / 171g
Spacing
100mm
Holes
24 ~ 36
Paul High Flange rear hub
Track · Flip-Flop

High Flange

Track hub with windowed 65mm flanges. Rear in flip-flop, fixed/free or single-sided fixed.

Weight
290g (rear)
Spacing
120 · 130mm
Chainline
44 / 48mm
Paul 100% Pure Paul Cranks
Crankset

100% Pure Paul Cranks

Crank arms milled in the USA from 2024 aluminum. The JIS square taper bottom bracket lets you choose Q-factor and chainstay clearance, with a 3-bolt SRAM direct mount chainring. Not for fixed gear use.

Weight
516g (180mm pair)
Length
155 ~ 180mm
BB
JIS square taper
Paul Thumbies shifter mount
Shifter Mount

Thumbies

Mounts that turn bar-end or downtube shifters into thumb shifters, handy when converting a drop bar bike to flat bars. For Shimano, SRAM and microSHIFT.

Weight
60g
Clamp
22.2 · 31.8mm
Speed
6-speed ~
Paul Melvin chain tensioner
Chain Tensioner

Melvin

A tensioner that mounts in place of a rear derailleur so you can run single speed on a vertical dropout frame. Two pulleys handle up to 20 teeth of front chainring difference.

Weight
108g
Chainline
44 ~ 52mm
Max cog
20T

Hubs · DetailBlack, silver, polished and more

Paul Disk Word hub detail
Disk Word
Paul FHub detail
FHub
Paul High Flange front hub
High Flange · Front
Paul High Flange rear hub, polished
High Flange · Rear

07

Fit Guide

Before choosing a brake,
check your lever's pull.

When choosing a Paul brake, first check your frame's brake mount (post or flat mount, canti bosses, centerpull bosses) and the cable pull of the levers you will use. Figures are from Paul Component's official technical information.

BrakesWeights are per wheel

ModelTypeMountCable pullPaul leversOther leversWeightNotes
Klamper · Short PullMechanical discPost · Flat mountShort pullCanti Lever, Cross Lever, Reverse LeverShimano and SRAM road levers and brifters211gRotor and adapter sold separately
Klamper · Long PullMechanical discPost · Flat mountLong pullLove Lever, Cross Lever, Reverse LeverLong-pull levers such as Cane Creek Drop V211gRotor and adapter sold separately
Klamper · CampagnoloMechanical discPost · Flat mountCampagnolo-Campagnolo Ergopower211gCampagnolo-only arm
Neo-RetroCantileverCanti bossesShort pullCanti Lever, Cross LeverShort-pull drop bar levers100gWide profile, generous mud clearance
Touring CantileverCantileverCanti bossesShort pullCanti Lever, Cross LeverShort-pull drop bar levers123gNarrow profile, clears panniers
RacerCenterpullBraze-on · Center mountShort pullCanti Lever, Cross LeverShort-pull drop bar levers120g / 157gReach 57 to 72mm
Racer MediumCenterpullBraze-on · Center mountShort pullCanti Lever, Cross LeverShort-pull drop bar levers113g / 154gReach 47 to 57mm, 32mm tire
MiniMotoShort-pull V brakeCanti bossesShort pullCanti Lever, Cross LeverShimano and SRAM short-pull levers (not Campagnolo)149gTires to about 44mm
MotoliteLinear-pull V brakeCanti bossesLong pullLove Lever, Cross LeverV brake flat bar levers137g650B or 700C wheels on 26 inch frames

LeversClamp is handlebar diameter

ModelCable pullClampWeightStyleMatching brakes
Canti LeverShort pull22.2mm134g (pair)Flat bar, standard or short reachCantilever, centerpull, sidepull, MiniMoto, short-pull Klamper
Love Lever CompactLong pull22.2mm125gTwo fingerMotolite, V brakes, long-pull Klamper
Love Lever 2.5Long pull22.2mm137gThree fingerMotolite, V brakes, long-pull Klamper
Duplex LeverShort · Long pull22.2mm94gTwo cables from one leverFront and rear brakes with one hand
Cross LeverShort · Long pull (selectable pivot)31.8mm140gInline lever for drop bar topsWith drop bar levers or on its own
Reverse LeverShort · Long pull (selectable pivot)Bar inner diameter 19 to 25mm80gBar end, ambidextrousBraking from the bar end, such as on bullhorns
E-LeverShort pull22.2 / 23.8mm56gOne fingerSecondary brake (with a fixed gear or coaster brake)

Paul brakes are sold per wheel; disc rotors, adapters and levers are sold separately. Braze-on centerpulls need bosses in the right position on the frame, and reach depends on wheel size and boss placement. Rubi Workshop will check your frame and levers and match brakes, levers and rotors for you.

08

Story

1989 ~ 2026Chico, California

From one lathe in a garage
to a benchmark for American parts.

From a single seatpost quick release to a fundraiser bike built with framebuilders for the 2026 Made Bike Show. While many parts makers moved production overseas, Paul has spent 37 years in Chico designing, machining and riding everything himself.

Paul Racer in pewter
Paul Neo-Retro detail
1988 ~ 2026Drag →
1988

Mountain Goat

Paul quits his engineering job in San Francisco and moves to Chico, where he grinds fillets at Jeff Lindsay's Mountain Goat.

1989

Quick Release

The first product, a seatpost quick release, is made in the garage. A first order from an Austrian businessman launches the company. Wheel quick releases follow.

1992

Stoplight Brakes

The first machine shop opens in Chico. The same year the Stoplight Brakes arrive, and brakes become Paul's signature part.

1996

Word

Paul makes his first hub for single speed mountain bikes, the ancestor of today's Word and Disk Word.

2015

Klamper

After three years of development, the first 300 Klampers are produced. The Radavist spends an afternoon at the Chico shop.

2017

Paul Camp

Paul Camp is held with eleven bikes built by eleven framebuilders around a monster cross and mountain bike theme.

2019

30 Years

Thirty years. A limited green anodized run and a 30th anniversary box set, and seatposts in 30.9 and 31.6mm.

2026

Cascade Cougar

A fundraiser bike on a Black Cat Bicycles frame, built up with Paul parts, debuts at the Made Bike Show in Portland. All proceeds go to the Oakridge Trails Alliance.

A bicycle built with Paul parts
Paul Racer brake detail

09 · Showroom

See them up close
at Rubi Workshop.

Machined surfaces and anodized colours are best judged in person. See Paul parts up close at Rubi Workshop, and we will help you choose the brake and lever combination that suits your frame and riding. Custom build consultations are also available.

Address
Rubi Building, 320 Sinbanpo-ro, Seocho-gu, Seoul
Hours
Mon to Fri 12:00 to 19:00, Sat 10:00 to 15:30
Call
1551-5320
Email
help@rubi.kr

For Dealers

Stocking Paul Component

Rubi Company is the official distributor of Paul Component Engineering in Korea. For dealer accounts and terms, please contact Rubi Supply, Rubi Company's B2B channel.