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Judd Racing


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ProTaper | SELA Self Engaged Launch Control, Holeshot Device | 125-450cc

ProTaper | SELA Self Engaged Launch Control, Holeshot Device | 125-450cc

Usually ships within 24 Hours (M-F)
Current Stock:
Was (inc VAT)
NOW: Trade: £159.95 (inc VAT) £133.29 (exc VAT)

Product Description

Self-Engaged Launch Assist (SELA)

ProTaper's revolutionary Self-Engaged Launch Assist (SELA) solves a problem faced by all motocross racers, no matter their skill level: setting a start device alone is awkward at best and impossible at worst. With its patent-pending self-engaged twist dial, SELA can be easily set without any assistance, giving riders the freedom to practice starts and line up for races by themselves.

During a start, SELA makes it possible to temporarily compress the motorcycle's front suspension, reducing its tendency to wheelie under acceleration. This optimizes rear wheel traction, allowing the rider to be more aggressive with the throttle and launch down the start straight with greater control.

Its unique, modular design allows SELA to be installed on most full-size, late-model motocross bikes. A dual-hinged receiver ring makes for quick and convenient installation without removing the front wheel or fork.

For detailed installation instructions and mounting templates specific to your motorcycle, enter its make, model, and year in the drop-down menus above. Then, see the Instructions & Templates tab below to download your files.

The following video provides an installation walkthrough. Please note that this video is meant to serve as a visual aid to the written instructions. It is not a replacement for them.



HondaYear(s)ReceiverSpacerScrew Set
CRF250R 15–18 A 4.5 C
CRF250R 19–22 A N/A A
CRF450R 15–18 A 4.5 C
CRF450R 19–22 A N/A A
CRF450RWE 19–22 A N/A A
HusqvarnaYear(s)ReceiverSpacerScrew Set
TC 125 15–22 A KTM/HSQ B
FC 250 15–22 A KTM/HSQ B
TC 250 15–22 A KTM/HSQ B
FC 350 15–22 A KTM/HSQ B
FC 450 15–22 A KTM/HSQ B
FC 450 Rockstar Edition 18–22 A KTM/HSQ B
KawasakiYear(s)ReceiverSpacerScrew Set
KX250 (f) 19–22 A 2.5 B
KX250F 15–18 A 2.5 B
KX450 (f) 19–22 A 2.5 B
KX450F 15–18 A 2.5 B
KTMYear(s)ReceiverSpacerScrew Set
125 SX 15–22 A KTM/HSQ B
150 SX 15–22 A KTM/HSQ B
250 SX 15–22 A KTM/HSQ B
250 SX-F 15–22 A KTM/HSQ B
250 SX-F Factory Edition 15–22 A KTM/HSQ B
350 SX-F 15–22 A KTM/HSQ B
450 SX-F 15–22 A KTM/HSQ B
450 SX-F Factory Edition 14–22 A KTM/HSQ B
SuzukiYear(s)ReceiverSpacerScrew Set
RM-Z250 13–22 B N/A C
RM-Z450 13–22 B N/A C
YamahaYear(s)ReceiverSpacerScrew Set
YZ125 15–22 A 2.5 B
YZ250 15–22 A 2.5 B
YZ250F 10–22 A 2.5 B
YZ450F 10–22 A 2.5 B

Other Details

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Please note any orders sent via a Courier will require a Signature.

We always request a signature is obtained from the recipient .

Judd Racing offer:  

FREE SHIPPING to the UK, if your order is over GBP 100 * ONLINE ORDERS ONLY

SATURDAY DELIVERY to UK mainland from GBP 9.00

FREE SHIPPING to the Isle of Man, Northern Ireland, Scottish Highlands if your order is over GBP 150 * ONLINE ORDERS ONLY

FREE SHIPPING to Spain if your order is over GBP 300 ONLINE ORDERS ONLY. 

FREE SHIPPING to Rest of Europe (EEC Countries) if your order is over GBP 300 up to 30kg ONLINE ORDERS ONLY

GBP 50 SHIPPING via DHL to Australia if your order is over GBP 500, up to 10kg weight

SHIPPING to South Africa via DHL - If you spend over GBP 300 then shipping is capped at GBP 85 for up to 30kg.   Delivery time is 2-3 Days

SHIPPING to Russian Federation from GBP 35, Delivery within 10-28 Days direct to the consumer.  Please be aware we are in the hands of the Russian customs officials on how quickly these parcels arrive.

* UK, includes Mainland UK, Northern area of Scotland (Scottish Highlands)  free shipping is only on orders over GBP 150 and only if placed online.  Unfortunately, we are charged more by our couriers for this area.  The following Postal Codes are classed as "Out of Area" and will be charged and Out of Area Rate, which we will contact you with to agree it is acceptable before we charge you the amount or send your order.  AB36-38, AB55-56, FK17-21 IVI 39, IV52-54, 63, KW1-14, PA21-40, PH19-26, PH30-41, PH49-50

We use: 

Royal Mail delivery service for smaller, low value items in the UK

DPD is our dedicated courier service.  (Please note that DPD predict service is currently in operation in the UK only)                                         


N.B.  We prefer to deliver to a BUSINESS/WORK ADDRESS if possible, as all our packages require a signature.  DPD will attempt 3 deliveries, if all 3 are unsucessful then the goods will be returned to Judd Racing.  If you wish for the goods to be re-sent then the cost is to be paid by the customer

We are dedicated to our Customer Service and ensuring that you are completely satisfied every time that you shop with us online or via the phone, and this includes our delivery service.

Most products detailed online are kept in stock, ready for dispatch. If an order is placed for a stock item before midday, your order will be dispatched the same afternoon. For U.K. deliveries small postal items, are sent via Royal Mail. Often, the item will be delivered within 2-4 working days, although this does depend on the Post Offices seasonal workload.

Overseas orders are usually shipped via our courier service DPD or DHL.  We reserve the right to charge additional shipping to destinations that do not form part of the mainland of the country selected, i.e. colonies & islands

All orders are dispatched Monday to Friday and all deliveries are made Monday to Friday 8am to 6pm. Unfortunately, we are unable to advise on actual delivery times via Royal Mail, but you will be given a tracking number for DPD who normally guarantee the delivery time.  We will not be liable for additional postage costs due to re-deliveries.

Please allow seven working days for domestic deliveries and fourteen working days for international deliveries before reporting a non-delivery.  Please allow up to 28 Days for deliveries to the Russian Federation, as parcels can be held up by customs.

To calculate the shipping cost of your order, please place all items you wish to purchase into the shopping cart and proceed to the checkout. Before you are asked for your payment information, you will be advised of the shipping cost. Free delivery is calculated automatically on all applicable orders. For countries not listed, please contact us for shipping costs.

Free shipping is applicable on internet orders only over GBP 100 to England, areas of Scotland and Wales only.

Please be advised, we ship Internationally - outside Europe.  Should there be any import charges on goods ordered from Judd Racing, this cost is to be paid by the client.  Please see our Terms of Business

Unfortunately, our free shipping offer does not apply to Republic of Ireland or any offshore locations. Please be assured that our shipping costs are kept as low as possible to these locations. We are constantly trying to improve our service and reduce the costs to our clients.

Why Buy From Us

Reasons to Buy From Judd Racing?

  • Biggest stock of aftermarket KTM 50, 65 & 85 parts in Europe
  • Over 30,000 Youth Motocross Parts In Stock
  • Next day delivery
  • Price Promise - We won't be beaten on price
  • FREE Shipping for all online orders over GBP 100 to UK mainland
  • FREE Shipping for all online orders over GBP 300 to Europe
  • Specialist in KTM and Husqvarna
  • Official KTM Dealer Motocross, Enduro & Street
  • Team of 8 dedicated enthusiasts to support your enquiries
  • Someone at the end of a phone, 9am - 5.30pm Mon - Fri  (GMT/UK Time)
  • Spacious Showroom/Shop with free collection facility
  • Nihilo Concepts Official UK & European Distributors
  • Scalvini Exhaust Centre & Official UK Distributors
  • Major brand stockists of KTM, Thor, Leatt, Pod, HGS, Bud Racing etc, etc
  • Worldwide parts, sales & distribution hub for EHR & Judd Racing own branded Pro Parts
  • Denicol and Two2Cool lubricants & coolants Official distributors
  • Technical assistance
  • Same day dispatch for all orders placed before 1pm GMT (Mon-Fri for in stock items)
  • Full KTM Master Technician's in our Workshop
  • Full KTM Approved Service Workshop
  • Motorcycles are our passion - enthusiasts work here

We are here to help and support you!

If you have any questions then please either:

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tel       - 0115 8226373