ATHENA O-Ring Ø63.00x2 mm for GAS GAS EC 125, MC 125 and SUZUKI RM 125 1990-2015

The ATHENA Ø63.00x2 mm M752006300094 O-ring is designed for GAS GAS EC 125, MC 125 and SUZUKI RM 125 from 1990 to 2015. An O-ring is a rubber ring with a round cross-section, squeezed into a groove between two parts to seal them. It is defined by its inner diameter and its cross-section thickness, in millimetres. On a bike you'll find them everywhere: drain plugs, covers, radiator fittings, water pump, oil filter, suspension.

Specifications

• Brand: ATHENA
• Manufacturer part number: M752006300094
• EAN code: 8051757123346
• Material: FKM (Viton)
• Hardness: 70 Shore A
• Engine: 2-stroke

When to replace it?

• Oil, coolant or fuel weeping at a plug, cover or fitting.
• O-ring flattened, hardened, split or pinched when you take it out.
• O-ring swollen or softened after contact with a fluid it isn't suited to.

Change the O-ring every time you remove the part it seals: it costs a few cents, next to the price of a leak. Measure the inner diameter and cross-section thickness of the old ring with a caliper, without squashing it, or use the size given in the workshop manual.

Fitting tips

1. Clean the groove and the mating surface: a grain of sand or a scrap of old seal is enough to cause a leak.
2. Lightly oil the new O-ring, or coat it with a compatible grease, so it seats without twisting.
3. Lay it in the bottom of its groove without rolling it or stretching it more than necessary, then bring the parts together squarely.
4. Tighten to the torque in the manual: an O-ring seals through controlled compression, not maximum tightening.

Why ATHENA?

Athena, an Italian company founded in 1973 near Vicenza, designs gaskets, pistons and cylinder kits for motorcycles. An OEM supplier to KTM, Ducati, Fantic, Piaggio and Triumph and a partner of the MXGP world championship, it develops its parts on the test bench and on the track with racing teams.

Spare parts and items to plan

• Grease : MOTUL 400 g

Frequently asked questions

How do I measure an O-ring?
Two dimensions are enough: the inner diameter and the cross-section thickness (the diameter of the rubber “cord”). Measure without squashing the ring, or take the dimensions of the groove.

Can I reuse an O-ring?
It's not recommended: squeezed into its groove, it has taken on its shape and hardened. At this price, always fit a new one.

Which material?
NBR handles oil and fuel; FKM (Viton) stands up better to heat. The material is listed in the specifications when it is known.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
GAS GAS EC 125 2015
GAS GAS EC 125 2014
GAS GAS EC 125 2013
GAS GAS EC 125 2011
GAS GAS EC 125 2010
GAS GAS EC 125 2007
GAS GAS EC 125 2006
GAS GAS EC 125 2005
GAS GAS EC 125 2004
GAS GAS EC 125 2003
GAS GAS EC 125 2002
GAS GAS EC 125 2001
GAS GAS MC 125 2011
GAS GAS MC 125 2007
GAS GAS MC 125 2006
GAS GAS MC 125 2005
GAS GAS MC 125 2004
GAS GAS MC 125 2003
GAS GAS MC 125 2002
GAS GAS MC 125 2001
SUZUKI RM 125 2008
SUZUKI RM 125 2007
SUZUKI RM 125 2006
SUZUKI RM 125 2005
SUZUKI RM 125 2004
SUZUKI RM 125 2003
SUZUKI RM 125 2002
SUZUKI RM 125 2001
SUZUKI RM 125 2000
SUZUKI RM 125 1999
SUZUKI RM 125 1998
SUZUKI RM 125 1997
SUZUKI RM 125 1996
SUZUKI RM 125 1995
SUZUKI RM 125 1994
SUZUKI RM 125 1993
SUZUKI RM 125 1992
SUZUKI RM 125 1991
SUZUKI RM 125 1990