Alfa Romeo 105 GT coupe.
The coilover guide.
Shop the coiloversA classic GT needs its mounting details checked before its finished height is chosen. The listed Nitron R1 includes a rear coilover and eye-to-eye damper conversion; agree the work against your actual coupe before ordering.
From Sprint GT to the larger-engined GTVs.
A modest drop and period alloy wheels can suit the Bertone coupe without leaving the tyres tucked against the arches. Start with the car underneath: its original rear axle, spring seats and damper attachments, plus any work carried out during an earlier restoration.
Nitron names the 105 from 1963 to 1977 for AL012. Its R1 package changes the mounting arrangement, while the separate RoadSport range reuses existing springs. The current coilover listing has Road and Track setup choices. Confirm the body, chassis identification and conversion details before selecting either.
Alfa Romeo presented the Giulia Sprint GT at Arese on 9 September 1963. Giorgetto Giugiaro designed the coupe while working at Bertone. Its round lamps, narrow pillars and early stepped bonnet edge give a restorer clear details to preserve when choosing wheels and ride height.
The original 1.6-litre car was followed by the GT 1300 Junior, 1750 GT Veloce and 2000 GT Veloce. When checking parts for one of these coupes, record its chassis identification and original market alongside the engine and running gear it has today.
For an older modified example, the useful starting point is its present condition. A restored shell, replacement rear axle or altered damper mounts needs inspecting before a new kit is chosen. Keep the work already done on the car in the fitting discussion, even when it looks close to standard.
Start with your 105 GT coupe.
Confirm the chassis, year and existing suspension before choosing your setup.
Early Sprint GT and Junior coupes
Supply the full chassis identification, build details and photographs of the existing mounts. The broad AL012 105 listing needs checking against your particular coupe and its existing suspension. An early step-front appearance does not identify every component beneath it.
Check my early GT
1750 and 2000 GT Veloce
Give us the exact model, original market and chassis details, including a 115-series designation where applicable. Confirm its mounting arrangement and the proposed AL012 conversion. An Alfetta GTV or later 916 GTV is a separate application.
Check my GT Veloce
Saloon, Spider or another Alfa body
The 105 designation extends beyond the Bertone coupe. A Giulia saloon or Spider needs its own application check: send the exact body, chassis identification and existing suspension details before choosing the package.
Check another 105 application
Restored shells and circuit builds
Declare changed axles, fabricated brackets, engine swaps and previous suspension conversions. Have the builder assess the mounting areas and event rules. The R1 release specifies eye-to-eye damper conversion for track and competition use; agree the supplied parts and required work before ordering.
Discuss my modified AlfaWhat do you want
from the car?
Road miles, circuit weekends or a car built around the lap. Start with how you drive.
Keep useful travel and agree the mounting work first.
Read the buying advice
Explain the roads you use, your tyres and the height you have in mind. The current R1 listing includes a Road setup choice, but its model-specific release still describes a mounting conversion. Ask whether that package suits the car and the work you intend. Nitron's shocks-only RoadSport package is a separate product, outside this coilover shortlist.
- Check mounts and retained parts
- Allow travel for the roads you use
- Confirm the full fitting plan
Choose the setup around the tyres and actual use.
Read the buying advice
Tell us how often the car goes on circuit and whether it still carries its usual interior and road tyres. R1 adjusts compression and rebound together through one control. After the body and installation are confirmed, choose its Road or Track setup around those plans.
- Describe road mileage and circuit use
- Declare tyres and weight changes
- Agree the Road or Track specification
Have the builder specify the package and its attachments.
Read the buying advice
Supply the event regulations, tyre choice and details of the shell and axle. Nitron offers custom spring rates by enquiry; those rates need choosing alongside the damping and the car's actual preparation. The builder should confirm the eye-to-eye conversion, mounting provisions and adjustment access before the parts are ordered.
- Supply the event regulations
- Identify modified mounting areas
- Agree springs, damping and installation
The factory damper runs through the rear spring.
The rear spring surrounds the damper on a standard Alfa Romeo Giulia Sprint GT.
Component layout only. Mounts, dimensions and adjusters vary by kit.On the original Giulia Sprint GT, the telescopic rear damper passes through the coil spring beside each end of the live axle. The spring and damper share an axis, with their own attachments. Check the actual car for changes made during an earlier restoration or conversion.
Nitron describes the R1 package with eye-to-eye damper conversion, a rear coilover and front adjustable platforms. Have the fitter identify the original spring seats and damper attachments, then confirm how the supplied package will mount. Its fittings and adjustment hardware need checking as part of the conversion.
Understand ride height and spring preload
Agree the conversion with the car in front of you.
Give the fitter the wheel width, offset, tyre size and any spacers. Check the front wheels against the suspension and body through steering and movement, then inspect rear tyre and spring clearance at the intended running height. Include exhaust clearance and the entrances the car uses.
Have the mounting areas and earlier repairs inspected before buying conversion parts. Agree which spring seats and damper attachments remain, what changes the R1 installation needs and how its adjustments will be reached. Arrange alignment and the checks specified by the fitter once the running height is set.
Restoration and mounting condition
Tell the fitter about repaired metal, replacement brackets and previous damper conversions. Have the attachment areas inspected against the proposed installation before deciding which parts to order.
Live axle and locating bushes
Identify the axle and its locating links, including changed bushes or arms. Wear and previous modifications belong in the assessment before a new spring and damper setup is chosen.
Period wheels and tyre clearance
Supply width, offset and tyre dimensions even when the wheels look close to original. Check inboard clearance and the arches through the movement required at the intended height.
Engine and competition changes
Declare the current engine, weight changes and intended events. Have the builder agree the spring specification and any installation changes against that actual car.
The current 105 GT coupe range.
See the controls and hardware in the listed kit.
AL012 R1 is the current listed 105 package, with Road and Track setup options. Its model-specific release names 1963 to 1977 and describes shocks and springs, eye-to-eye damper conversion, a rear coilover and front adjustable platforms. Confirm the exact body and installation before ordering. R1's single damping control changes compression and rebound together; custom spring rates need an enquiry.
View Nitron 105 GT coupe kitsFind your 105 GT coupe coilovers.
Prices include UK VAT. Choose an application and brand, then open a kit for its current options and availability.
1 listing
Match the engine, body style and axle-load limits on the product page before ordering.
Nitron · NTCAL012R1_
Nitron Alfa Romeo 105 R1 Coilover Suspension Kit
Check the exact application
All 105 GT coupe kit links and part numbers
Before you order.
Identify your car
Identify the exact coupe, chassis details and original market; declare a 115 designation or changed engine.
Match the kit
Confirm the AL012 application against the body and actual suspension, including existing conversions.
Check what’s included
Agree the eye-to-eye mounting conversion, supplied spring hardware and retained attachment points with the fitter.
Check your modifications
Check wheel, tyre, body and suspension clearance at a usable running height.
Plan fitting
Plan fitting, alignment, adjustment access, rechecks and current supply timing.
See what the adjustments do.
Choosing coilovers for road and track
Compare the kit against your roads, tyres and setup plans before counting adjusters.
Ride height and spring preload
Understand the two adjustments before choosing a lowering range.
What spring rate tells you
Compare force and movement, read the units and choose a spring with the damper in mind.
Spring rates and top mounts
Read the front/rear figures and check which mounts come with your kit.
Questions about Alfa Romeo 105 GT coupe coilovers.
Check the details before choosing your kit.
Does the 105 listing cover every classic Alfa body?
Nitron's release names Alfa Romeo 105 from 1963 to 1977 without a detailed body or chassis table. Give us the exact model and identification for confirmation. A shared 105 designation does not establish kit approval for a coupe, saloon or Spider.
Does a Giulia Sprint GT have separate rear spring and damper positions?
The original factory manual shows the rear damper running through the coil spring on the same axis, beside the live axle. The spring and damper are separate components, but they do not occupy the side-by-side positions seen on some newer cars. Check an older modified car for previous conversions.
Is the Nitron R1 a direct swap for the original dampers?
Agree the fitting requirements before treating it as a direct replacement. The AL012 release describes shocks converted to eye-to-eye fittings for track and competition use, a rear coilover and front adjustable platforms. Have the fitter confirm the mounts, supplied parts and work required on your car.
How does R1 differ from the 105 RoadSport package?
The model-specific release describes RoadSport as shocks only, using existing OEM or lowering springs. R1 includes shocks and springs, with an eye-to-eye damper conversion described in the release. RoadSport is a separate product and is outside the current coilover shortlist.
What do the Road and Track choices mean?
They select the setup of the listed AL012 R1 package. Nitron publishes different spring rates for its FRS and TDS specifications, with custom rates available by enquiry. Choose around the actual car, tyres and use after confirming its application and installation.
What if my coupe has a 115-series designation?
Supply the full chassis identification, model, year and original market. The coupe's model history includes several engine and identification changes, while Nitron's current release uses the broad 105 name. Confirm the particular application before ordering.
How low can I go with wider period wheels?
The usable height depends on the wheel width and offset, tyres, suspension travel and body clearance. Have the fitter check the actual car through steering and suspension movement. A photographed stance cannot establish the clearance or travel available on your build.
Will the number plate finder confirm an earlier suspension conversion?
The finder helps identify the car. Tell us separately about changed axles, spring seats, damper mounts or engine conversions, with photographs where useful. Those changes still need checking against the proposed kit and fitting plan.
Let’s talk suspension.
Find your Alfa, then tell us its exact model and chassis details. Include the existing spring seats, damper mounts and any restoration or competition changes so we can discuss the package and fitting plan.