Kyosho UM578B Ultima SB Front Knuckle & Hub Carrier Upgrade [KY-UM578B]

Kyosho UM578B - Front Knuckle&Hub Carrier Set(Ultima SB)

Price:

CAD$14.05

Brand:

Kyosho

Model:

KY-UM578B

GTIN:

4548565466795

Condition:

Brand New

Quantity:

Quantity Discount
Unit	Price	You Save
2	$11.95 each	$4.20 or 15%
3+	$11.36 each	$8.09 or 19%

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Description
FAQ

Upgrade steering precision for your Ultima SB

The Kyosho UM578B Front Knuckle & Hub Carrier Set strengthens the front end of your Ultima SB to improve steering response and on-track stability. These replacement knuckles and carriers help maintain accurate steering geometry on loose, rough or technical off-road surfaces, giving club racers and hobbyists more predictable control and longer service life for front-end components.

Key advantages of the Kyosho UM578B set

Manufactured from durable materials, this set reduces flex under load and resists impact damage that commonly wears out weaker parts. Precision fit keeps toe and caster behavior consistent so you see steadier handling and less stress on bearings and linkages. The UM578B is a practical upgrade for those wanting reliable steering performance without major chassis changes.

Remark :

Due to limited stock availability, please notice that some Kyosho 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.

Will the UM578B fit all Ultima SB variants?

Yes, the Kyosho UM578B set is produced for the Ultima SB series. As with any upgrade, compare your current hardware to ensure bolt patterns and ball stud placements match before installation.

What steering servo should I pair with this kit?

This set works with standard 1/10 scale steering servos; using a higher torque servo can sharpen response. Check horn geometry and linkage length to keep steering neutral and avoid binding.