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Makes And Models => Zero Motorcycles Forum | 2013+ => Topic started by: rayivers on June 25, 2015, 07:38:04 AM

Title: 43mm KTM forks
Post by: rayivers on June 25, 2015, 07:38:04 AM

I've found 43mm alternative forks that will fit the '14 FX triple clamps (and possibly the '13 and '15 FX too, but I've no measurements for those) - the '03 to '16  KTM 85 SX forks.  Here are the specs (the KTM travel and OAL may vary slightly between years):

               FX           KTM
OAL       812mm     835mm
Top TC    49mm      49mm
Btm TC   53mm       53mm
Travel    230mm     270mm

There's plenty of upward fork-tube adjustment available in the Zero TC's and all the upper tubes for setting front ride height.

Ray

Title: Re: 43mm KTM forks
Post by: Cortezdtv on June 25, 2015, 07:51:12 AM

The 13 14 and 15 are all different triple clamps

Title: Re: 43mm KTM forks
Post by: rayivers on June 25, 2015, 08:13:16 AM

Quote

The 13 14 and 15 are all different triple clamps

Any measurements?

Ray

Title: Re: 43mm KTM forks
Post by: Francois on June 25, 2015, 12:55:11 PM

do you have the same for the zero S

Title: Re: 43mm KTM forks
Post by: laschrocket on August 27, 2015, 05:37:47 PM

Guess you're already aware, but the zero fx weighs about tiwce as much as the ktm 85

Title: Re: 43mm KTM forks
Post by: rayivers on August 27, 2015, 06:45:15 PM

My 2.8 FX weighs 228 lbs, the 2015 KTM 85SX about 150.  The KTM 43mm WP fork is plenty strong, and with proper springs and valving would work fine even for a 5.7 FX and 250 lb. rider, for non-competition use.  Earlier versions of these forks were used on the KTM 520EXC, a 250 lb. motorcycle.

Ray

Title: Re: 43mm KTM forks
Post by: odedmaz on August 28, 2015, 09:44:48 PM

Isn't that the fork KTM use for their freedom e electric motorcycle?
If it is, than it should handle the fx with ease.
Good find.

Title: Re: 43mm KTM forks
Post by: rayivers on August 29, 2015, 03:04:33 AM

I didn't realize the Freeride e has 43mm WP forks - that's a good find too, thanks!  That bike weighs 242 lbs - hmm, I wonder what spring rate they use...  :)  Actually, the whole front end looks pretty good to me; 21" wheel, 4-piston brake, etc.

Ray