Valves, Springs, Caps & Collets


KTT Services

EN24T steel caps, sintered collets, double coil spring 6R4, Colisbro valve guides.

Inlet and exhaust valves are made of N214 material in the UK by GNS Valves and have 7mm nitrided stems, superfinished, featuring improved collet grooves.

KRT design 41mm or 39.6mm, 7mm stem superfinished exhaust valve

Weight: 68 grams

Price: £42.00

KRT design 47 or 48mm, 7mm stem superfinished inlet valve

Weight: 73 grams

Price: £48

Replacement Thruxton 1-piece 2” head 5/16” stem superfinished inlet valve

Price: £50

VM/VMT exhaust valve,  3/8”stem superfinished

Price: £35

Valve caps EN24T steel 6R4 (Velocette)

Price: £23

Valve caps EN24T steel (7mm stem)

Price: £23

KRT small 7mm stem collets

Price: £7.00

Velocette stem collets 5/16” or 3/8”

Price: £7.00

Modern double coil spring 6R4

Price: £35

Spring base washers for above springs

Price: £3

Colisbro valve guides 7mm, 5/16” or 3/8”

Price: £19

Unleaded inlet or exhaust valve seats

Price: £19

Valve seats: remove, supply, install install and cut

Price (each): £102

Valve guides: remove, suppy and install

Price (each): £69

Finned alloy pushrod tube and ‘O’ ring

Price: £65

Stainless steel pushrod tube base plate

Price: £20

Testimonial from Guy Owen in New Zealand, February 2014:

“Just reporting back regarding those 7mm stem valves, titanium collets and spring retainers I bought from you last year.

Since fitting them the Venom has covered 10,000 miles without messing around too much speed wise with plenty of winding hill work etc.

Am very pleased with the performance which is still up there.

Please find attached a copy of the local ‘Nelson Classic Motorcycle Club’ paper which features the Velo on the front cover”...


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