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Welcome To Bones UK - Official UK & EMEA Distributor for BONES  BSA Bantam CDi Systems.

Bones units are £289.25 plus 14.99 - Total £304.24 tracked and signed for shipping. Typically UPS, FedEx. Your welcome to collect from St. Ives Cambridgeshire.

Bones U.K. is based in Cambridgeshire, about 15 miles north of Cambridge very close to all the major roads.  A1,A14 and the  M11.

Bones CDI Ignition systems come complete with photo illustrated fitting instructions their easy to understand and our units ship with all the parts you need for installation.

Bones U.K. secured sole European, Middle East and African distribution rights in early 2017. We are the only source in the Northern hemisphere for 'Bones' CDI ignition. Todate (June 2019) we have not had one faulty unit. How many manufacturers can make such claims?

Neither have we had a customer who couldn’t fit one. Since 2017 several customers have  choosen to visit us in Cambridge and take a closer look at our own D1,D7 and B175 Bantams to ask questions and reassure themselves their able to fit the unit. Todate no one has failed to do so.

Our ignition systems are manufactured using the latest technologies,CNC machined housings and laser cut bracket plates.

The general architecture of the CDI system means that around twice the energy of a conventional coil\points ignition system is released to the spark plug at low revs and significantly more at higher rpm.

We believe we sell the very best CDi units for the BSA Bantam Motorcycle.

When you talk to us you'll soon realise that unlike other sellers, we walk the walk, and pride ourselves in responding extremely fast to any and all questions regarding the Bones CDI units. All of our bantams have Bones CDi unit fitted. 

Having ridden our own B175 &  two D7's for many thousands of miles were really interested in helping promote these simple to fit units to the UK BSA Bantam community.

We were approached by Bones themselves to help market, raise the profile and support UK Bikers wanting the very best CDi units for the BSA Bantam. 

When fitted you can't easily tell that their installed. The main coil and wiring is easily mounted under the tank, and out of the way.

Just How Easy Are They To Fit  ? 

A recent customer, Bob fitted it within the hour, and the video below shows Bobs first engine run. 


A confident engineer can fit one in About an hour and soon out and about on their refreshed BSA Bantam. We typically fit one in 35mins once the petrol tank is removed. All of our units come with photo illustrated manuals. 

manual web 

1951 BSA Bantam D1 - It's First Run


1951 BSA Bantam D1 - Rebuild

On this website theirs fitting videos and after watching our videos and looking the brochure if your really not too sure you can manage it,  then we offer two levels of fitting service ( additional charge )

1.      You can leave you bike with us for two hours and we'll fit, or

2.      For a little extra you can stay with us and we will teach you how to fit these wonderful units, confident in the fact that you took part in refreshing your bike. Please use the contact form on this site to enquire.


We are based near St. Ives in Cambridgeshire, and although our support is fanatical we cannot accept visitors unless pre - booked. Our service is designed to work via the post. Having said that you can always skype us to discuss your unit or call us on Skype id “cloughabroad”

Our Location for Collection is PE28

We cannot accept cash through the post and prefer BACS. As long as you have an email address we can now take payment from all major debit and credit cards. We do not accept American Express. Please use the contact us page to contact us. 


Comprehensive support, it goes without saying this is unlimited whilst your under our comprehensive warranty, and if your thinking of buying then our pre-sales are not pushy. We have unlimited enthusiasm to tell you about our experiences of these wonderful units. Indeed take a look at the videos on this page.

About Us ?  

Were bikers, and have ridden to work since 1985.  Fast forward to today and we ride every moment that we can. Mostly BSA Bantam ( B175 & D7 ) Both models are fitted with Bones CDi. Our D7 did 1800 miles last year with the Bones fitted.

Our B175 has several hundred miles under it's belt. Performance and reliability has been transformed on both bikes. Video below shows me on a B175 collecting my sausages from the local butcher !


Professional Installation Service Available

Many of the parts for sale on our site are very easy to install, we do offer a professional fitting service, drop your bike off and we'll have completed the work on time on budget and we'll always be happy to answer your questions. 

We Teach You Installation Service Available

Many of the parts for sale on our site are very easy to install, we do offer to teach you how to fit any accessory or ignition system to you bike. Bring your bike over, we provide light refreshments and instruct you on fitting the accessory. 

Warranty Claims and Small Print.

Although it's rarely needed there are times when things go wrong, and you need support, assistance or just someone to offer advice. Click the link at the top of the page, we believe we offer first in class support. Often with extended support out of hours. Remember your not dealing with a faceless corporation. You'll be talking to experienced people who walk the walk.

*Note: if you buy elsewhere, or have previously bought a bones CDi elsewhere then you will not be covered by us for support or warranty issues. We only comprehensively cover units sold by us.