Items (0)

Thumper Cylinder Heads Mini Adjusted Cam Gear Sprocket Maximize Your Stock or Performance Camshaft Power

£256.90 (Delivery from £11.00)
RRP: £285.00 You Save: £28.10 (10%)
Item in Stock  |  Usually dispatched within 24 hours
Add to Bag
This product has been added to your basket...
  • Continue Shopping
  • Checkout


  • 5-6.5 WHP Increase Even on Stock OEM Cam
  • 12 FT lbs Torque Increase
  • Comes Adjusted Specific to suit your cam! ( Please allow a day or two )
  • FREE set up specific to your needs and Cam Choice
  • Street - Aggressive Street- Weekend Track- Full track
  • We will Refund you £45.00 On receipt of Old Sprocket



Thumper Performance adjustable cam gear for the BMW mini allows that fine tuning element to any stock OEM or performance cam. An often over looked area, where power gains have been achieved between 5 - 6.5 WHP with just a STOCK camshaft goes to show how much a small component can make to any well modified mini performance engine.

Many people simply buy a high performance cam, bolt it on and off they go, but why not fit the adjustable cam gear at the same time to gain even MORE power and make the most of that high performance camshaft ? The adjustable timing gear comes with all of the necessary information to degree the cam to the exact position required.

If the thumper adjustable timing gear is purchased with a Crowler or Thumper cam then it will come already pre set and degreed specifically to your cam, allowing you to simply bolt the cam in and off you go.


Please Note:

We require your old sprocket in a reusable condition as a part exchange to send to our engine builder. On receipt of the sprocket we will refund you £45.00 from the purchase price.

Once you have made a purchase for the cam sprocket we will contact you requesting the type of cam and required set up.

Please contact us for a return address





 At PRS Racing we don't want to charge any more than is necessary for the postage hence we charge by the weight of each product, helping to ensure cost effective shipping prices.
The following prices are based around quotes and can be subject to change. If this is the case PRS Racing reserve the right to contact you with any shipping amendments prior to shipping of your products to ensure 100% customer satisfaction. All prices are INCLUSIVE of VAT.

UK Delivery
0 - 0.49kg £1.99
0.5 - 0.99 kg £2.99
1kg - 2.99kg £5.00
3kg + (£10.50)

European Delivery
0 - 0.49kg £4.99
0.5 - 0.99 kg £5.99
1kg - 2.99kg £6.99
3kg + £20 (Weight Dependent)

Rest of World Delivery
0 - 0.49kg £9.99
0.5 - 0.99 kg £12.99
1kg - 2.99kg £14.99
3kg + £25.00 (Weight Dependent)

All Parcels are shipped with a tracking number to ensure you know when to expect your order. If you have supplied us with a contact number or e mail, you can txt to re arrange the delivery time and date

PRS are committed to keeping a large stock of goods, however we cannot always guarantee that all items will be in stock at time of purchase. If your item is not in stock we will contact you informing you when to expect your item.

PRS cannot be held liable for any reasonable or unavoidable loss or damage suffered as a result of a delay in delivery.

Please note if you are using paypal as your payment method and a refund is required a small fee of 20p will be deducted form the initial purchase price.

Be the first to review Thumper Cylinder Heads Mini Adjusted Cam Gear Sprocket Maximize Your Stock or Performance Camshaft Power. Write a review ›