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Triumph Valve Seat Cutting Video

Upcoming & Exciting News - Triumph Valve Seat Pocket Machining (Short Video)

We get a lot of questions from customers asking to see our cylinder head valve seat cutting process 


To answer that question directly, we decided to make a video on cutting a valve seat pocket on a 1963 Triumph TR6R cylinder head 

Click here to watch the video

Here Are 2 Ways To Save With CBS

Is inflation, low bike value or tariffs affecting your bottom line as a hobbyist vintage British motorcycle builder or dealer?


CBS is proud to announce 2 forms of discounts that we are now offering that you might be able to benefit from on your next order

Each month we will be offering new discounts, which could include free shipping, BOGO (buy one, get one) and a certain percentage off your entire order in addition to "Discounts for Dealers" program

Click here to view how you can save some cash today

Featured Bike of The Week

Our first Vincent ever to be featured on our page as "Bike of the Week"!

This machine is a 1951 Vincent Series C Rapid

Owned by Andrew, of California

Photographed at Curry Mountain, Ca.

Thanks for sharing!

Click here to submit your photo

“Deal of the Week” - Norton Commando MKIII (Electric Start) Sprag Bearing - 06-4733

For sale today is a new Norton Commando electric start sprag bearing

This is a new bearing ready to be installed. Replaces Norton part numbers 064733 & 06-4733.

Fits Norton Commando MKIII models for the year of 1975 only

Click here to place your order today

Tech Tips

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CBS Team

Meet The Team

Classic British Spares was founded in Southern California during the early 1990's but we currently reside in Lancaster, CA.

We firmly believe that owning a vintage British motorcycle should be affordable for all walks of life which is exactly why we offer a large range of vintage Triumph parts, BSA and Norton Commando parts all at everyday low prices.

We stand behind our products and parts across our site. Customer service is our #1 priority and getting your order correct and accurate every time.

We hope that you will find our site valuable for all your parts needs and technical information.

Meet The Team