Will it fit
your coilovers?
V1 sits under the spring, on the lower perch, so fit comes down to the spring, the perch and how much thread you have left. Here's what we've checked so far.
- Coilover size
- 60mm
- Added under the spring
- 20mm
- Confirmed so far
- 8brands
Brand by brand.
Every coilover brand we know V1's result for, and the ones we haven't checked yet. Open a card with a photo to see V1 installed.
Fits8
- BC RacingFits
- Feal SuspensionFits
- Fortune AutoFits
- JOM BlueLineFits
- KSportFits
- KWFits
- PBMFits
- StanceFits
Needs modification4
- FactionFab F-SpecNeeds modificationSpring perch OD needs grinding
- Godspeed ProjectNeeds modificationSpring perch OD needs grinding
- RacelandNeeds modificationPerch top needs trimming on certain models
- TeinNeeds modificationSpring perch OD needs grinding
Doesn't fit1
- OhlinsDoesn't fitShock body is larger than V1's inner diameter
Not checked yet14
- AST
- Bilstein
- Blitz
- Cusco
- D2 Racing
- Function and Form
- HKS
- ISC Suspension
- JRZ
- MCS
- Megan Racing
- Moton
- Silvers
- Yellow Speed Racing
Some coilovers may need collar modifications.
Certain coilover versions may need a modification to the lower spring perch collar for V1 to fit. In the example below, the raised collar lip was too wide to fit inside the bearing.
We ground the outside edge of that raised circular lip to reduce its outside diameter, giving the bearing clearance around the lip. The second photo shows the adapter installed afterward.
Confirmed fitments
Dimensions.
V1 dimensions from the CAD design, shown alongside the corresponding coilover features. These are nominal values, not fit tolerances.
V1 dimensions
A simplified section through the V1 CAD model, with dimensions to scale. Small rounded edges are shown as chamfers. The spring locator faces up into the spring; the lower opening faces down over your perch lip. Nominal mm, not fit tolerances.
- Spring locator OD
- 60 mm
- Locator shoulder above seat
- 5 mm
- Seating stack
- 20 mm
- Through bore
- 53 mm
- Lower opening diameter
- 61.5 mm
- Lower opening depth
- 9.5 mm
- Housing OD
- 91 mm
Spring inner diameter
V1 is made for 60 mm coilovers. Measure straight across the inside of the coil end that sits on the adapter.
- V1 spring locator OD
- 60 mm
Coilover body diameter
Measure across the threaded body above the perch, where V1 sits. The body passes up through V1's bore.
- V1 through bore
- 53 mm
Perch lip diameter
Measure across the raised lip on top of the perch, not the wider flange below it. The lip sits inside V1's lower opening.
- V1 lower opening diameter
- 61.5 mm
Perch lip height
Measure the lip's height from the flange's top face. The lip rises into V1's lower opening.
- V1 lower opening depth
- 9.5 mm
Depth to V1's internal shoulder, with rounded edges. Not a maximum lip height.
Thread below the perch
V1 raises the spring seat. Measure the usable thread below the lock ring: you need room to lower the perch by 20 mm and keep the coilover maker's required thread engagement.
- V1 seating stack
- 20 mm
Lower base to spring seat. The 60 mm locator shoulder is 5 mm above the seat; its narrower neck continues upward inside the spring.