As the title says, tried mounting a pannier rack on front but m4 bolts are loose but m5 bolts won't go in. Why?
Front shock pannier rack mounting hole too big for M5, too small for M6
byu/aras773 inbikewrench
by aras773
As the title says, tried mounting a pannier rack on front but m4 bolts are loose but m5 bolts won't go in. Why?
Front shock pannier rack mounting hole too big for M5, too small for M6
byu/aras773 inbikewrench
by aras773
11 Comments
Forgot to mention, tried multiple M4 and M5 bolts, none fit. Shock is SR SUNTOUR NVX 30
I’d try an “imperial” bolt then.
So, obvious question. Is it meant to be Metric? There are many other threads it could be. Does the manufacturer say to use metric?
a long M4 bolt + 2 washers and 1 or 2 M4 nuts on other side to secure it.
re-tap it to metric
Probably imperial #12 size
Are you sure about your bolts? I’ve fitted hundreds of mudguards to suntour forks, pretty sure it’s an m6x1
It should be an M5 (standard rack/mudguard bolt size), so it’s possible yours is partially stripped out – the threads do look a bit rough in the video.
If it was mine, I would either drill (5mm) and tap to M6, or just drill it straight through and use a longer bolt and nut.
Looks like there isn’t any thread left in that hole.
If that’s the case you’ll have to re-tap it to the size you need it be.
Don’t mount a rack there unless you confirm it’s designed for that. People mounting racks on fender eyelets result in far too many ER trips.
In future, know you can always use a threading tap if a thread is damaged. Or just rethread and go one size bigger.