MSR-BD11 / MSR-BD12 / MSR-BD12A Touring Car Insert for Grip Tuning - Yokomo ZR-042M  [ZR-042M]

Yokomo ZR-042M Molded Inner for Touring Car Medium (4pcs)
Price:
AUD$11.28
Brand:
Yokomo
Model:
ZR-042M
GTIN:
639342222582
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Or you may find similar product under the
Spares / Hop-ups - Yokomo - MSR-BD12A category
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Asphalt grip tuning insert

This molded foam inner is built for touring car tyres and is supplied as a set of 4pcs. It is intended for on-road asphalt use where added internal mass and managed rebound change tyre contact dynamics. The insert enhances grip via internal weight distribution and rebound characteristics, allowing better lateral control and improved mid-corner bite without affecting the tyre profile.

Installation is familiar territory for touring car tyre technicians: the molded inner is placed between the tyre and wheel as a replaceable insert to tune how the tyre responds under load and steering. It functions as a tuning tool rather than a permanent alteration, suitable for racers and hobbyists tuning tyre performance on paved circuits.

Supported Chassis MSR-BD11 / MSR-BD12 / MSR-BD12A.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

What handling changes should I expect?

Expect firmer mid-corner bite and improved lateral consistency due to increased internal mass and tailored rebound, which stabilises the contact patch during transitions.

Does it alter the external tyre shape?

No. The insert changes internal dynamics only; the external tyre profile remains the same while contact behavior is tuned from within.

How many inserts are provided?

Four molded inner inserts are supplied in the package (4pcs).

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