Semi-pneumatic Wheels

Puncture proof semi-pneumatic wheels

Semi-pneumatic wheels - puncture proof tyres:
Polyurethane foam-filled tyres are the premium ‘pneumatic’ (or semi-pneumatic) wheel option: The wheels are puncture proof and provide the greatest performance and reliability. Semi-pneumatics are fitted to two piece wobble-free steel centres. Manufactured from 1.8mm steel. [NOTE: some of the cheaper centres on the market are manufactured from steel as thin as 0.6mm]

Bearings:

Deep groove shielded bearings fitted to a toughened heavy duty housing enables true running and extra strength (Deep groove bearings can last up to three times longer than normal pressed bearings).

Tyres:

4 Ply for longer, rougher life (many imports use 2 ply). For wheels pulled or pushed at low speeds (not driven), the tread pattern is not critical.  The following are standard patterns available;

RIB: Straight lines along the tread, common on wheelchairs

LUG: General purpose, outside use.  Strongly marked cross lnes on a fairly flat tread surface.

LGG: Grey rubber LUG - non marking on floors

DMD: Diamond shaped pads on a flatter surface, often used in rougher construction sites.  Good for softer grassed surfaces but may become clogged with mud.

ZGG: Grey rubber zig zag - non marking on floors

KNO: This knobbly pattern is often preferred for outdoor use where a strongly marked tread takes a good grip on soft ground.

Tread pattern	Diametre & width (mm)	Wheel Code	Capacity at speeds DO NOT EXCEED		Bearing Code	Bearing Type	Hub width & bore (mm)
			8 Km/hr	15 Km/hr
	200 x 50	P200X50RIB	75Kg	Not suitable	-SR20	Roller	60 x 20
					-SQ12	Precision ball	60 x 12
	220 x 54	P250X4LGG	75Kg	100Kg	-SB20	Deep groove ball	60 x 20
					-SB34		60 x 19
					-SB58		60 x 16
	220 x 54	P250X4LUG	75Kg	100Kg	-SB20	Deep groove ball	60 x 20
					-SB34		60 x 19
					-SB58		60 x 16
	265 x 70	P350X4DMD	100Kg	160Kg	-SB20	Deep groove ball	60 x 20
					-SB34		60 x 19
					-SB58		60 x 16
	265 x 70	P350X4ZGG	100Kg	160Kg	-SB10	Deep groove ball	60 x 1"
					-SB20		60 x 20
					-SB34		60 x 19
					-SB58		60 x 16
	400 x100	P400X8KNO	120Kg	200Kg	-SB10	Deep groove ball	80 x 1"
					-SB20		80 x 20
					-SB34		80 x 19
					-SB58		80 x 16

Semi pneumatic wheels to fit H Series forks

WARNING: The load and cold inflation pressures imposed on the combination of tyre and wheel must not exceed the recommendations even though the

tyre is approved for a higher load or inflation pressure.

USE OF PNEUMATIC WHEELS other than as recommended can be DANGEROUS.