GSX1400 Owners .org

Technically Speaking => Suspension => Topic started by: SteveJ8672 on Thursday, 29 January 2026, 04:45 AM

Title: What size is the swingarm pivot bolt nut?
Post by: SteveJ8672 on Thursday, 29 January 2026, 04:45 AM
HI Guy's, just to confirm the size of the swingarm pivot bolt nut, is 27 or 28mm?. I have every size bar those in my vast socket array, ecking typical. :doh:
Title: Re: What size is the swingarm pivot bolt nut?
Post by: KiwiCol on Thursday, 29 January 2026, 05:50 AM
Dunno what size it is, but there's 2 more sockets for you to buy to add to the collection.  Mans gotta have these things . . .   even if they only use them once!
Title: Re: What size is the swingarm pivot bolt nut?
Post by: Eric GSX1400K3 on Thursday, 29 January 2026, 08:27 AM
Not near the bike atm, but I believe its an M16 nut and bolt. Width A/F for a std M16 is 24mm
Title: Re: What size is the swingarm pivot bolt nut?
Post by: Pommeroy on Thursday, 29 January 2026, 09:18 AM
Just measured mine, 27mm. Tried two different 27mm sockets on it and some slight sloppiness...I don't have a 26mm socket to try (but having identified that deficiency, I'll obviously have to buy one)
Title: Re: What size is the swingarm pivot bolt nut?
Post by: Eric GSX1400K3 on Thursday, 29 January 2026, 10:56 AM
So an M18 nut and bolt set then. A/F width for an M18 nut is 26.16mm, so a 27mm socket makes sense
Title: Re: What size is the swingarm pivot bolt nut?
Post by: Hooli on Thursday, 29 January 2026, 06:42 PM
Swingarm pivot is 24mm as I recall, it's smaller than the rear axle. Same both ends so you need two sockets really, but a 25mm is close enough as it's not mega tight.

Now shall we argue which side of the bike the nut goes? the last one I took apart had it on the RH side, can't remember the others.
Title: Re: What size is the swingarm pivot bolt nut?
Post by: Eric GSX1400K3 on Thursday, 29 January 2026, 09:19 PM
Oops, im getting senile, I thought this was about the brace rod from swingarm pivot to brake calioer.  My bad. Im getting back in my box now...
Title: Re: What size is the swingarm pivot bolt nut?
Post by: Barbastro K6 on Thursday, 29 January 2026, 09:27 PM
M25X1,50

https://www.ebay.es/itm/277558732453
Title: Re: What size is the swingarm pivot bolt nut?
Post by: Eric GSX1400K3 on Thursday, 29 January 2026, 10:45 PM
Very shiny, something for Hooli's Mk2 perhaps?
Title: Re: What size is the swingarm pivot bolt nut?
Post by: Hooli on Thursday, 29 January 2026, 11:50 PM
Quote from: Eric GSX1400K3 on Thursday, 29 January  2026, 10:45 PMVery shiny, something for Hooli's Mk2 perhaps?

It had a silver one of those & a matching one on the steering stem. They're getting slung over the hedge & proper ones fitting. Cause those chav ones are bloody awful.