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Biltwell Bonanza Gloss Black Helmet


Biltwell Bonanza Gloss Black Helmet


The flagship Bonanza helmet from US manufacturers Biltwell. This classic biker helmet looks slick in a gloss black finish.

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Biltwell's Bonanza helmet in a classic gloss black finish. Provides exceptional protection, courtesy of an injection molded ABS outer shell. Its removable hand-stitched lining keeps you dry and comfortable through a combination of moisture wicking Lycra panels and open cell foam padding in a diamond stitch. This is a classic biker helmet, executed to perfection by one of the finest manufacturers in a generation.


  • Injection-molded ABS outer shell
  • Expanded polystyrene inner shell
  • Original hand-painted design
  • Hand-sewn removable brushed Lycra liner with open-cell foam padding
  • Built to DOT safety standards
  • Adjustable neck strap with steel plated D rings and retainer
  • Accent edging


In-stock products usually ship within 1-2 business days, while on-call items can have a shipping delay of up to 7-10 business days. Your estimated delivery dates will appear on the checkout page prior to order completion. You’ll receive a Shipping Confirmation email when your order ships

Greasy Kulture ship via DHL and Royal Mail.

DHL make deliveries from Monday to Friday. Royal Mail delivery Monday to Saturday. 

Domestic shipping for GK Magazine: from £1.50

Domestic shipping on all other goods: £5 

International shipping for GK Magazine: varies by quantity and region

International shipping (under 2kg): £10

International shipping (over 2kg): £20

UK - delivery within 2-7 days*

*Shipping times are to be used as a guide only and are based on time from order.

Product in stock will be shipped within 24 hours of order Monday to Friday.

On call and dropship products can take up to 10 working days to arrive.

Greasy Kulture cannot take responsibility for any delays to orders due to customs clearance or payment transaction delays.


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Size Guide

Biltwell Size Guide