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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Gr-Racing on June 19, 2019, 09:50:37 AM

Title: Lug Bolt spec?
Post by: Gr-Racing on June 19, 2019, 09:50:37 AM: hi im trying to find the Lug Bolts spec for a K75c but not having much luck I did find in the service manual the Length is 55M but no luck on the rest.

Style: Locking Lug Bolts
•Thread Pitch: ?
•Seat: Cone (Conical)
•Shank Length: 55mm
•Width 12m

thanks
Title: Re: Lug Bolt spec?
Post by: Laitch on June 19, 2019, 10:12:59 AM: Use Max BMW's parts fiche. It will tell you diameter(width), pitch and length in millimeters.
Title: Re: Lug Bolt spec?
Post by: Gr-Racing on June 19, 2019, 10:50:51 AM: Quote from: Laitch on June 19, 2019, 10:12:59 AM
Use Max BMW's parts fiche. It will tell you diameter(width), pitch and length in millimeters.

only found the Length 55MM in parts fiche

update
found width on OEM site 12M still searching for pitch
Title: Re: Lug Bolt spec?
Post by: Laitch on June 19, 2019, 11:29:10 AM: Quote from: Gr-Racing on June 19, 2019, 10:50:51 AM
only found the Length 55MM in parts fiche

update
found width on OEM site 12M still searching for pitch
Take another look; it's still there.
Title: Re: Lug Bolt spec?
Post by: Laitch on June 19, 2019, 11:43:57 AM: From which source are you getting 55mm length for a K75 rear wheel bolt? That length differs in the parts fiche at Max and the pitch is right beside it.
Title: Re: Lug Bolt spec?
Post by: mw074 on June 19, 2019, 12:51:55 PM: 3 spoke wheel 36 31 2 333 226 WHEEL BOLT - M12X1,5X60 Wheel bolt, M12 x 1.5 x 60.

Cast rear rim 36 31 2 333 225 WHEEL BOLT - L=55MM Measures M12x1.5x55mm.
Title: Re: Lug Bolt spec?
Post by: Gr-Racing on June 19, 2019, 01:18:45 PM: Quote from: mw074 on June 19, 2019, 12:51:55 PM
3 spoke wheel 36 31 2 333 226 WHEEL BOLT - M12X1,5X60 Wheel bolt, M12 x 1.5 x 60.

Cast rear rim 36 31 2 333 225 WHEEL BOLT - L=55MM Measures M12x1.5x55mm.

thank you for your help.
Title: Re: Lug Bolt spec?
Post by: Laitch on June 19, 2019, 01:49:50 PM: There are actually two lengths for Y-spoke bolts. Those made after 08/90 are 60mm but regardless, the fiche discloses all that at the click of a mouse.