SKU: 88674645924

BC Racing ZR-Series Coilovers (D-18-ZR)

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Description

BC Racing ZR-Series Coilovers (D-18-ZR)BC Racing's ZR Series models bring a 3 way adjustable track ready coilover system to racers at an affordable price that's never been seen in the industry. Each ZR series coilover system offers independent low speed high speed compression damping adjustments and separate rebound adjustment. They also offer full height adjustability independant of piston travel and spring preload. On cars with McPherson struts the ZR Series comes with an inverted mono

BC Racing's ZR Series models bring a 3-way adjustable track ready coilover system to racers at an affordable price that's never been seen in the industry. Each ZR series coilover system offers independent low speed / high speed compression damping adjustments and separate rebound adjustment. They also offer full height adjustability independant of piston travel and spring preload. On cars with McPherson struts the ZR Series comes with an inverted mono-tube damper with the steel braided teflon coated line exiting the top of the damper to the external reservoirs that can be remotely mounted in the engine bay or trunk. Cars with double wishbone suspension come with upright dampers with steel braided Teflon coated lines or solid stem that exit the damper at the bottom and lead to the external reservoir that can be mounted under the chassis or on the shock body itself. they offer 30-clicks of rebound adjustment, 15 clicks of low speed compression and 12 clicks of high speed compression adjustment.

  • Mono-tube damper with 3 way adjustable damping
  • Inverted damper design (depending on models)
  • 30 clicks of rebound adjustment
  • 12 clicks of high speed compression adjustment
  • 15 clicks of low speed compression adjustment
  • height adjustment via shock body - not spring
  • Choice of spring rate
  • 1 year limited warranty against manufacturer defects
  • fully rebuildable with all parts available for purchase

BC RACING ZR SERIES FEATURES

Mono-tube inverted dampers (Cars with McPherson struts only):

Reduced Damper Flex

The BC Racing ZR Coilovers use large 42mm inverted monotube dampers. This inverted style allows both the inner and outer tubes to take all of the side loads encountered when cornering. This reduced flex of the BC Racing ZR series gives a more predictable steering feel and improved responsive handling. It also improves the life of the BC Racing damper seals.


Reduced unsprung weight

The mono-tube inverted damper design on the BC Racing ZR series coilovers has a number of advantages, including reducing unsprung weight by moving the oil and gas reservoir way from the hub and attaching it to the shell.


Reduced heat transfer

Also by inverting the coilover damper the oil and gas is moved away from the hub assembly. This means that less heat is transferred to the oil under braking which makes for more consistent damping.


External Reservoirs

These BC Racing ZR series coilovers The external reservoirs hold much more oil than conventional coilovers, allowing the unit to operate for much longer before overheating.


3-way adjustable Damping - Separate Rebound and High / Low Speed Compression Adjustment

The external reservoirs also house a secondary piston, which allows for separate adjustment of rebound and high / low speed compression damping. Rebound damping is adjusted on the top of shock and compression damping is adjusted on the external reservoir.


 

ALL BC RACING COILOVERS FEATURE:

Corner weight adjustment:

The lower spring platform of the BC Racing coilovers are adjustable. This allows the car to be set up for corner weighting to achieve perfect balance and ensures that maximum tyre efficiency is achieved.

The car needs to be placing equal weight on each tyre on an axle so both front tyres need to be taking equal loading as do both rears. This makes sure that both tyres are doing their equal share of work when cornering which increases overall grip, maximises corner speed and reduces lap times.

Optional assister springs can be purchased to allow wheel droop to be dialled into the unit to suit specific needs.

 


Ride height adjustment

Ride height is determined by the position of the coilover bottom mount. The mount can be wound up and down the damper body to give a full range of adjustment from near standard ride height to so low it wouldn't be drivable on the road.

Because ride height is determined by an adjustable bottom mount rather than spring platform you retain full damper travel regardless of the ride height run.

 


Damping adjustment:

BR coilovers feature 30 way damping adjustment that combines both rebound and compression in one adjuster for simplicity and ease of use. This adjustable facility allows you to fine tune the vehicle to meet the relevant conditions.

By tweaking front and rear damping you can adjust the way the car handles. Increasing damping force on the rear relative to the front, for example, will start moving the vehicle into a more oversteer orientated stance.

If you want to go drag racing in a rear wheel drive car then you want the back of the car to squat off the line to maximise weight transfer to the rear and therefore onto the rear tyres. This maximises traction and helps prevent wheel spin. To achieve this you would soften the rear dampers to allow faster compression. If you had the rear dampers set to hard, as you might run the car on a race track, then the car would be less inclined to squat so traction would be reduced.

Conversely, if you want to go drifting and are finding it hard to break traction and are having problems with understeer then making the rear dampers harder will help reduce traction whilst making the front dampers softer will give greater front traction. This will make the rear of the car looser whilst minimising understeer thus altering the vehicles handling characteristics more towards drift than drag, road or track.

 


Pillowball (rose joint) upper mount:

Many of the BC Racing ZR coilovers come with pillowball upper mounts. The mount itself is made from aluminium alloy, anodised and then bead blasted to give a high quality, durable finish.

The pillowballs themselves are of Japanese manufacture and their solid nature eliminates any flex or play associated with the standard rubber mounts so improving response and handling.

 


Camber adjustment:

If its possible to include camber adjustment on your vehicle then the BC Racing coilovers automatically include camber adjustable aluminium pillowball top mounts. These feature the same high quality Japanese manufactured pillowball but give the added benefit of an adjustable top mount that allows camber to be set to suit your needs be it road, track or drift.

 


Corrosion protection:

The damper units are black chromed steel to give superb durability even through the darkest of European winters. The aluminium components (top mounts, locking collars etc) are anodised and the steel lower mounts go through an electrophoretic disposition process followed by powder coating. A random selection of steel components (brackets, dampers, screws etc) are put through a salt spray test once a month to check the quality of the protective processes and that anti corrosive properties are kept at the highest possible standard.

 


High quality coil springs:

BC Racing coilovers only use the highest quality steel for their spring manufacturer. They are produced from SAE9254 high strength durable cold wound steel.

The springs are compression tested through over 500,000 cycles with less that 5% deformation.

 

 


Patented concave lower locking collar:

Coilovers use a locking collar to prevent the bottom mount becoming loose. If the bottom mount becomes loose then the damper body can work its way down into the bottom mount so reducing ride height on that one corner which can lead to dangerous handling characteristics. This is a very common problem for coilovers in general. BC Racing utilise an innovative and patented designed lower locking collar with a bevelled edge that seats into a corresponding bevel in the coilover bottom mount. This vastly increases the surface area that the locking collar works on and so prevents the common and dangerous problem of the locking collars working loose.

 


High quality oil:

BC Racing dampers use a sophisticated shim stack design and high quality oil to consistently control the compression and rebound speed of the damper rod even under the most extreme conditions.

As the vehicles travels over rough ground the compression and rebound motion of the damper rod heats the oil. Poor quality dampers use cheap oil whose characteristics alter with varying temperatures. Its vital that high quality oil is used that can maintain consistent viscosity under a wide temperature operating range. Once the oil start to degrade, its properties change leading to damping changes leading to changes in the vehicles handling characteristics.

BC Racing ensures that only high quality oil is used so that damping rates are maintained not only for the moment in hand (i.e. whilst out for a back road blast on or track) but that long term longevity is maximised with oil that doesn't degrade quickly over time thus extending the dampers operating life significantly.

 


Nitrogen pressurised dampers:

When you work a damper hard on track or on high speed bumpy roads you can cause the oil to aerate and cavitation can occour. This causes foaming which effectively reduces the oils viscosity and so reduces the units damping effect. High quality oil goes a long way to help reduce this problem but BC Racing go one step further and pressurise the dampers with nitrogen. The nitrogen exerts a pressure on a floating piston which in turn exerts a permanent pressure on the oil dramatically reducing aeration and so improving the consistency and quality of the damping. The pressurised nitrogen also adds an additional element of effective spring rate to the damper unit.

 


Bearing mounted upper spring platform:

Because the spring twists as it compresses it is very important to minimise stiction between the spring and its seats. If this tension is not relieved then spring binding can occur leading to the spring rate effectively altering slightly as the spring compresses and extends. The tension generated can lead to rapid deterioration of the spring pearches and in extreme cases can cause the spring platform and locking collars to loosen. This can lead to the platform and locking collars "walking" down the damper resulting in un even ride height and danger of the spring dislocating under full damper extension.

The friction between spring and seats also has an effect on steering effort as the springs are physically turned with the wheels. This introduces additional unnecessary friction into the steering system which has a knock on detrimental effect on the vehicles handling characteristics.

The bearing mounted upper spring platform is one of BC Racings innovative designs. By vastly reducing stiction between the spring and its seats the BC Racing units avoid the above problems thus improving the efficiency of the steering system and allowing the spring and damper to work as designed.

 


Optional upgrades:

Damper adjusting extenders - to save you the time and trouble of removing the parcel shelf each time you want to adjust the damping on your BC Racing coilovers we can offer pairs of adjuster extenders. These attach to the adjuster knob on the top of the coilover and are available in three lengths, 110mm, 200mm and 250mm. They attach in seconds with a simple grub screw design.

Assister spring perch - you might prefer to run some droop with your coilovers or maybe you want to alter the ride by adding an additional smaller assister spring. The spring perch and assister springs allows you to do this. The springs are available in a wide range of spring rates.

Pillowball top mount - some applications come with hardened rubber top mounts as standard to ensure the highest quality ride and keep costs as reasonable as possible for road use but we often offer a pillowball upgrade for these vehicles should you want to remove this flex and make the car a little more hardcore. Upgrading to pillowball eliminates the flex inherent in even the hardened rubber used by BC Racing so improving the handling for those looking for the ultimate.

 


Warranty:

BC Racing has the best warranty in the industry. Your purchase is completely protected from any defects including blown shocks within the first year. If something should happen after that, we stock all replacement parts at incredibly low prices (Cheaper than rebuilding), that will be available to you in a few days rather than weeks.Our goal is to get your car up and running as quickly as possible.

 

 

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SKU: 88674645924

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4.6 ★★★★★
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Verified Purchase
Arty
Massapequa, US
★★★★★ 4
The end is only the beginning
Format: Kindle
Theo appears in a small fictional Georgia town named Golden. He’s a distinguished old man with a mysterious past. He’s a quiet observer; then he makes friends in a coffee house and there pursues a plan to personally gift every portrait drawing on the wall to the townsfolk simply pictured there. As an artist, I appreciated the detailed descriptions of each face, and then the invited dialogue with each person behind those drawings. The characters Theo gets to know are varied and storied. Of even more value to me was Theo’s visit to the studio of the originator of all the portraits. Layers start getting unpeeled in this tale. I started to highlight phrases when the motivation for doing the work got uncovered between them. There were times when I felt the main character was “too good” to be believable. I personally appreciated the subtle (and sometimes not so subtle) references to Theo being a Christ figure. But remember that Jesus was the one who said “woe to you when all men speak well of you”. The Theo who is pictured in this book, and the reactions of most around him is maybe a little too syrupy? A friend who is in my book club felt herself being “manipulated” when reading this book. I ponder that. There was a plethora of reactions to Jesus too, but I don’t think any honest quester ever felt manipulated. He let them walk freely away. For me the significance of each face was the key theme, and each face held sorrow. There are some beautiful lines in the book around this. The ambitions: true and false in the “art world” also the business world resonated also. The Pastor’s words during a funeral at the end were valuable. And the little girl’s imagination (prompted by Theo) of all the musical notes flying on their wings into the chandeliers so that they can sing again later was a wonderful metaphor. There are some excellent passages in this book if you remain in it. As one grandmother said in this tale: “Baby, they’s justice and they’s mercy. If you not sure what to do and you gotta choose one or the other, I say always go the mercy way. If you make a mistake, make it for mercy. Bad mercy don’t hurt nearly like bad justice and always remember, the eye of God can see.”
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Reviewed in the United States on May 11, 2026
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Megan
Chelsea, US
★★★★★ 5
⭐️ A Beautifully Written Story That Stays With You ⭐️
Format: Paperback, Format: Paperback
Theo of Golden by Allen Levi is one of those rare books that quietly settles into your heart and lingers long after the final page. The writing is intelligent, thoughtful, and beautifully crafted, with storytelling that feels both timeless and deeply human. The characters are wonderfully developed and feel incredibly real, but Theo himself is unforgettable. I found myself learning so much from him along the way about life, people, kindness, and perspective. Allen Levi has a gift for creating a world that feels warm, meaningful, and genuine. This was a truly lovely read, full of wisdom, heart, and beautiful prose. An easy five stars for me. 📚✨
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Reviewed in the United States on May 27, 2026
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EarlyLight
Los Angeles, US
★★★★★ 5
Savor Theo -A Heart & Soul Dish
*No spoilers in this review I found this book to be an unexpected banquet for my soul. I don’t read fiction very often, but as I read Theo of Golden, I realized I am hungry for what this story offers. Based on its swift and growing popularity, I believe the world is hungry for the gift of Theo of Golden. When speaking on his book, Mr. Levi shared a quote from David Brooks, “ To write a book about kindness does not make you kind. To read a book about kindness does not make you kind… but to buy a book about kindness, that makes you kind.” 😄 This humor & humility — a “don’t take yourself too seriously” a welcoming accessibility is in the author and this book. I love this spirit in the story —so much so, if I could hug this book any tighter— it would be behind me. (borrowing generously from Groucho Marx ) I started to do research on Allen Levi - who wrote this gift. He chose well, hundreds of little choices, keeping him close to beauty, kindness, meaningful relationships and community. His choices of early morning devotionals and prayer and regular visits to schools and coffee houses, to write songs instead of watch tv, all feeding the character of the author. I believe you cannot share beyond where you have traveled. He has traveled to deep places. A definite Ode to Joy prior to offering Theo was to write about the last 365 days of his brother’s life they shared after a cancer diagnosis entered. His brother’s early exit from here and entrance into heaven, I believe, prepared the way for one of the greatest fiction writings of our day. Allen Levi’s habits to avoid technology and be fully present with the people in his life bleeds beautifully onto the characters of Golden. The environment is one which doesn’t talk about technology or politics. Just people connections. He firsts introduces us, then beautifully befriends us to a better way and a place, accessible to us if we would choose to allow mindful relationships to develop. All this making the community of Golden a place to cherish. Ultimately I believe the gift is to see Golden could be grown in a hometown, a neighborhood, with all people… It’s a heart posture- a posture that Theo bestows on the town. In my ideal world, the author would meet another great songwriter, poet, storyteller: Ray Hughes. Ray is another gift to humanity, in creativity, intelligence, and accessing heaven on earth through words. I believe there would be a powerful explosion of hope, humor and generosity in their meeting, subsequent friendship & collaboration. I’m dreaming here, and lifting a prayer to the heavens- it would be awesome!! With a grateful heart, I highly recommend Theo of Golden. Humbly submitted, Dawn Holley Author, 22 Keys To Joy for the easily distracted
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Reviewed in the United States on February 13, 2026
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mavo
Natrona Heights, US
★★★★★ 5
A story of art, music and writing
Format: Kindle
Like the face of heaven. That’s how I see Theo, and I hope this will be a movie. “Theo of Golden” is the debut novel by Allen Levi. He was writing as a personal challenge and just doing some scenes. He began writing in 2019-2020. He had been a songwriter and lawyer. He has no connection to Portugal, which is mentioned in the book quite a bit and led me to try Port wine. This book will lead me to do a lot of things. Theo is a supremely interesting man! More on that other familiar interesting man in a later post. The book will make you want to look at the faces of people. Use a gaze that calms and loves. Be kind and generous. Greet people. Be less fearful and exchange stories. Be attentive. Love people up close. Invest in the art of living. Be beautiful, useful and pleasurable. All which I should be doing, but will now do for Lent. Theo listened with genuine interest, adoringly, encouraging and with gratitude. Newborns look for their mother’s face, a particular gaze that calms, loves and welcomes them. Someone they recognize, run to greet and someone to bond with. Levi signs the books “With thanks for the Theo in you.” He greets kids at a high school three days a week. He reads to second graders. He doesn’t mind being around people not like him. The coffee shop setting is a real place in Columbus, Ga. It’s called Fountain City Coffee. In picking bestowals of the sketches there, Theo looked for someone lost, weary, worried or troubled that the gift would encourage or help. I got to hear him in a Zoom. A group of women from Vermont who lost their daughters came to Georgia on a pilgrimage. He was a steward of clean rivers and water and said the river still flows after death. He went through a “walking season” in losing his daughter. In a book about knowing a person, it is mentioned that a bench is a good way to do this. 7 p.m. was Theo’s meeting time with the strangers for bestowals and ended up being the time of the funeral. He also mentioned “Think Little” by Wendell Berry. Do so and if everyone does, it spreads. Levi was born in 1956. His dad is 98. His mother passed and he lost his brother, whom he called a clone of Theo, at 55. His dad was a forester, explaining his interest in nature. Springtime is an end with a future, said Theo. One character named Tony runs the Verbivore book store and has the Penny Loafers out there because they haven’t spent a penny and they majored in loafing. Theo and Tony end up having Port together and he told Theo is Viet Nam stories. The Penny Loafers were better than a room full of Senators. They lie. Tony ends up being more of a believer of Jesus at the end because he wasn’t before Theo. James Ponder has no degrees hanging in his office. Note the “ponder” mentions throughout. He is a dispenser of advice, secret keeper and agent of calm. Secretary Mrs. Gidley was suspicious of Theo at first but comes around. Ponder was Theo’s landlord and mentioned the 18-inch railing and three flights of stairs before the 86 year old decided to live there. Kendrick reminds me of the custodian who won “America’s Got Talent,” who has an ill daughter Lamisha, who wants to be a physical therapist or artist in the end. Her education will be paid for by Theo as were some of her medical bills. Maria Menendez is the daughter of the “little man” who killed Theo’s wife and daughter in an accident. Maria had cancer. I don’t want to give away too much, but Theo decided to love Asher, the sketch artist, with two hearts. And there is much more to that. Simone wears a wardrobe that honors music on stage and guests who come to listen did the same. Cello intricacies became fascinating to me and I looked up some of the music mentioned. His bow was a gift from Theo. He played Fado for Theo at his concert. It ended up being a requiem with three characters, Kendrick and Basil, the busker. Simone’s parents were there and I wasn’t clear if Theo sprang for their trip. At the end, Basil studies to get a doctorate in American literature. Katherine is the reporter who respects Theo’s wishes while many people she interviews are praise seekers and applause junkies. He was a friend, not a headline. Ellen rides a bike and I’ll just call her different. He gave her a foldable handsaw, cordless sander, drill and wood burner to make feather boxes. I have made one because of this book. She had $1,600 to her name from selling them, but gave the money to the cello fund after she and Simone were assaulted and the perpetrator was never caught. Cleave is the poisonous guy—like a snake, hemlock, black widow or “words with no wisdom guy.” All but Cleve show community in sitting on the same row or pew. They all have sparks of hope. I loved this line: We walk all roads, long and winding. Road to ruin. Easy Street. Road less traveled. I’m so mad that my notes from Chapter 10-28 somehow disappeared. I may reread. This post would be longer. I probably have a dozen favorite books and just added this one.
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Reviewed in the United States on February 5, 2026
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Verified Purchase
Walter Desmond
Fort Morgan, US
★★★★★ 5
Recognizing the Hearts that Burn Within Us
Format: Paperback
Yes, Theo of Golden does, at times, border on the melodramatic and the sentimental. It can be repetitive. It can take an awfully long time to make its point. And yet, the novel speaks very significantly of the need for love, compassion, generosity and forgiveness---in a world that is not always kind, in a world where many of us carry secret burdens---where sadness (mixed with intermittent joy) might be viewed as a universal human affliction. Theo of Golden is, overall, a book of glad tidings. An end with a future. Thoughtfully, warmly and intelligently written. A novel that often addresses the beauty of Art, most notably painting and music. A novel in which I learned what a fado is. In fact, I learned a lot from this novel. Unlike some readers, I did not see the book as misogynistic or xenophobic. I didn't necessarily see it as "Christian fiction"---unless you mean doing good, striving for strength of spirit and understanding the connection between "the ultimate and the proximate, the wide grace and the narrow way." Finally, I don't view the novel's conclusion as disappointing, but simply as falling action and resolution. It is, after all, a very traditionally structured work. Kudos to the author Allen Levi for having written an initially self-published book that was later picked up by a major publishing house. That is, indeed, a rarity.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026

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