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CBS "Bow-Tie" Ignition Timing Degree Wheels

Back In-Stock - "Bow-Tie" Ignition Timing Degree Wheels & Adapters by CBS

We are so proud to finally have our "Bow-Tie" ignition degree wheels & adapters back in-stock

Its been a little over year (which we apologize for), but we read your emails so we decided to make another run! 

Our "Bow-Tie" degree wheels are used for static ignition timing on Triumph, BSA & Norton twins (non magneto)

We have adapters to suite both CEI and UNF thread profiles depending on your cam, and 2 different colors of degree wheels you can purchase from (red or black)

Inspired by the original Tri-Cor style ignition degree wheels

Click Here To Order

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

A customer sent in a photo of his 1971 Triumph T100C as "Bike of the Week"

Here are a few words from the owner...

"Located in Albuquerque New Mexico this is a (1971) Triumph Trophy 500 - T100C desert sled."

Thanks for sharing, Eddy!

Click here to submit your photo
BSA A7 / A10 Chainguard 42-7701

“Deal of the Week” - BSA Pre-Unit Singles & Twins Rear Chainguard - @$199.95

Today we are offering a new English made rear chainguard to fit various BSA pre-unit singles & twins

Chain guard comes supplied in a primer finish (must be painted prior to installing). 

Suitable for applications that originally came equipped with a 42-7701 unit. Fits most BSA applications from the B31, B33, A7, A10, etc from approx 1954 & later that came with the "crinkle" style rear hub and swingarm only (not suitable for Ariel style hub applications)

Click here to order today

Tech Tips

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  • Tuff Jug

    Nothing better than a Tuff Jug 😤 (Short Video)

    How many folks here have a gas can or gas container in there shop that leaks when you put fuel into your motorcycle's gas tank?I have 2 VP Racing gas...

    Nothing better than a Tuff Jug 😤 (Short Video)

    How many folks here have a gas can or gas container in there shop that leaks when you put fuel into your motorcycle's gas tank?I have 2 VP Racing gas...

  • Vincent Frame Repair (Short Video)

    Vincent Frame Repair (Short Video)

    I guess it's safe to say that were working on Vincent's now?!All jokes aside, a rear frame module off of a 1950 Vincent Black Shadow came in the shop for...

    Vincent Frame Repair (Short Video)

    I guess it's safe to say that were working on Vincent's now?!All jokes aside, a rear frame module off of a 1950 Vincent Black Shadow came in the shop for...

  • What's That Noise?

    What's That Noise? (Short Video)

    John's Triumph T100C (500) engine was making some interesting noises!  Watch the full video and discover what we found  Thanks for watching today Thanks for reading & watching today's post...

    What's That Noise? (Short Video)

    John's Triumph T100C (500) engine was making some interesting noises!  Watch the full video and discover what we found  Thanks for watching today Thanks for reading & watching today's post...

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CBS Meet The 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