N K Racing Ltd
N K Racing Ltd
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    • Home
    • SERVICES
      • Swing Arm Conversions
      • Front End Conversions
      • Engine Conversions
      • Motoliner
    • Products
      • Braking
      • Suspension
      • Engine
      • General
    • GP Replicas
      • YZR500
      • RGV500
    • Speedway
      • About
      • Products
    • Gallery & Media

  • Home
  • SERVICES
    • Swing Arm Conversions
    • Front End Conversions
    • Engine Conversions
    • Motoliner
  • Products
    • Braking
    • Suspension
    • Engine
    • General
  • GP Replicas
    • YZR500
    • RGV500
  • Speedway
    • About
    • Products
  • Gallery & Media

Products and Services

Timing Covers

OIl Catch Tanks

Timing Covers

Available for the GM Engine, these Billet timing covers provide several advantages over the stock cover, but one specific advantage over all covers available for the engine including every aftermarket cover. With the NK Cover you can change the bearing in minutes using only a 4mm hex key and no special tools. Made from 7022 aerospace alloy


£135.00+Vat

Timing Covers

OIl Catch Tanks

Timing Covers

Available for the JAWA  Engine, these Billet timing covers provide several advantages over the stock cover. With the NK Cover you can change the bearing in minutes using only a 4mm hex key and no special tools. Made from 7022 aerospace alloy


£125.00+Vat

OIl Catch Tanks

OIl Catch Tanks

Rear Spoiler Brackets

Fit in the frame alloy oil catch tanks with breather sizes to suit your engine. Fit and forget.


£50.00+Vat

Rear Spoiler Brackets

Rear Spoiler Brackets

Rear Spoiler Brackets

Made from 7075T6511 Alloy (the same as the clutch baskets), the strongest and lightest static spoiler brackets available, with fasteners that don't come loose, and stainless outer ring to stop the spoiler from disintegrating. This spoiler ring does have the correct clearance for all hubs and studs so they don't destroy themselves. Sometimes, you get what you pay for. 


£80.00+Vat

Fork Blades

Rear Spoiler Brackets

Seat Brackets

The strongest and lightest fork blades available, why? because they are made from military grade 7075T6511 Alloy then Hard Anodised. This material allows a design that reduces weight whilst adding stiffness through the use of radii machining and I-Beam principles. However if you just want your race number or logo in them, these aren't for you.


Jawa £215.00 a pair

Stuha £175.00 a pair +Vat

Seat Brackets

Rear Spoiler Brackets

Seat Brackets

Are they the lightest? NO, Are the strongest Alloy seat brackets, YES

Simple. I've seen too many break too often, I was asked to make something that lasts. Machined from billets of 6082T6 alloy, then TIG Welded and heat treated. Drilled for Left and right stays


£65.00+Vat

Custom Pit Equipment

Custom Pit Equipment

Custom Pit Equipment

If you want to do it right, if you want the best you can get, to do the best job you can, I can build it. Above is an "On Track" clutch cooler, with a high output blower, Lithium Ion ultra light battery, Fuel top up, Bike stand holder, Chain spray holder, and timing cover hex keys all in one. Grab and go, custom built to your own requirements.


POA

PRODUCTS AND SERVICES

Clutch Spring Tester

Clutch Arm Holder with Guard

Clutch Arm Guard Billet

"The Clutch" the link between your engine and the rear wheel. Apparently it's quite important to speedway riders. All have their own way of cleaning their plates, the type of plates they run, yet hardly any have a way of testing their clutch springs or even grouping their new springs into evenly matched sets. Well now you do. Test springs, group springs, compare springs, anything else and you are just guessing.


£175.00+Vat

Clutch Arm Guard Billet

Clutch Arm Holder with Guard

Clutch Arm Guard Billet

We've all seen the guards made from round bar, that break every couple of weeks, where they crack through the mounting holes, well these ones I made to solve that problem. CNC Machined from billet 6082T6 Aircraft alloy, the same rider who broke them every 2 weeks, has now been running the same ones for 6 years. Ended up being the cheapest clutch arm guards KK ever bought.


£45.00+Vat

Clutch Arm Holder with Guard

Clutch Arm Holder with Guard

Clutch Arm Holder with Guard

To hold the covers away from the clutch arm, and to stop accidental contact with the right leg these clutch arm holders for NEB arms, have a guard built into the design. No bolt on parts, the actual guard has a pad made from PTFE. The most compact and neatest way of achieving the protection for the arm and the covers


£58.00+Vat 

(clutch arm not included)

Snap On Clutch Tool

Clutch Basket Re-Ring Service

Clutch Arm Holder with Guard

Clutch Tool, made by Snap On, Lifetime guarantee (unless you use it as a chisel)

Soft grip handle. 


£30.00+Vat

Oil Drain Tray

Clutch Basket Re-Ring Service

Clutch Basket Re-Ring Service

Simple idea, why not make an oil drain tray that you don't have to "tend" while the oil comes out. If you also make it the same shape as an oil bottle it doesn't take up any extra room in the tool box.


£28.00+Vat

Clutch Basket Re-Ring Service

Clutch Basket Re-Ring Service

Clutch Basket Re-Ring Service

New chain wheel fitted to your existing basket, but with a difference. Most are fitted with screws (which never come loose do they) and all use the screws to hold the chain wheel to the basket and put all the shearing forces through those screws. I CNC machine a tooth pattern into the basket and the exact reverse into the chain wheel. The shearing forces now go through the basket and chain wheel not the screws. I also use solid rivets. They don't come loose. If you want confirmation, ask Hans Andersen


£100.00+Vat

products and services

Hydraulic Clutch Conversions

Available in several combinations of Master Cylinder and Slave Cylinder, full length lines, dry breaks etc.

Magura Master Cylinder

Available in 9.5mm or 10.5mm Bore Master Cylinder for different feel and lever travel. Available with a shorter 2 finger lever option, the standard long lever is perfect for those who like to use all 4 fingers on the lever

Brembo Master Cylinder

10mm Bore Master Cylinder, from the best manufacturer of Hydraulic controls there is. Lever design really lends itself to smaller hands or those who like to use 2 or 3 fingers on the lever

Hydraulic Dry-Break

Fitted between the Master and Slave lines give the ability to separate the line without the need to re bleed the system, perfect for crash damage changes and maintenance in the workshop


Hydraulic Clutch Conversions

I make no apologies, these are not the cheapest hydraulic clutches on the market, but they are the only ones that can be tailored to your every need and custom built just for you. Clutches aren't generally something in speedway where cheaper is better.

Brembo Cast Slave Cylinder

Brembo Slave Cylinder with NK manifold. OE on many motocross bikes. Give the perfect piston size for the length of travel required

Oberon Billet Slave Cylinder

Oberon Slave Cylinder with NK Manifold

Dry-Break in line

Clutch Fluid lines are Venhill with stainless steel swivel ends, guide grommets and sheathed in a black covering as standard, other colours are available to order.

Hydraulic Clutch Price List

Magura Master Cylinder

10.5mm or 9.5mm bore using DOT5.1 or 4 brake fluid

Brembo Slave Cylinder

£375+Vat

Full length Venhill line, swivel ends

Brembo Slave Cylinder

£435+Vat

With Venhill Quick Connector 

Oberon Billet Slave Cylinder

£375+Vat

Full length Venhill line, swivel ends

Oberon Billet Slave Cylinder

£435+Vat

With Venhill Quick Connector


Brembo Master Cylinder

10mm bore using DOT 5.1 or 4 brake fluid

Brembo Slave Cylinder

£350+Vat

Full length Venhill line, swivel ends.

Brembo Slave Cylinder

£410+Vat

With Venhill Quick Connector

Oberon Billet Slave Cylinder

£350+Vat

Full length Venhill line, swivel ends.

Oberon Billet Slave Cylinder

£410+Vat

With Venhill Quick Connector

Copyright © 2025 N K Racing  - All Rights Reserved.


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