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Re: Lower fork clamp

PostPosted: Sat Oct 20, 2018 3:07 am
by No side stand
Thanks hogoct.
Can anyone post a picture of the lower clamp...not in a bike.
Steve

Re: Lower fork clamp

PostPosted: Thu Oct 25, 2018 7:59 pm
by No side stand
Ok. Failing that, does the R lower clamp have the fittings and threaded holes for the headlight shroud?

Re: Lower fork clamp

PostPosted: Fri Oct 26, 2018 9:26 am
by hugoct
Standard lower clamp casting with ears for mounting the tops for the dust boots.
The holes for the fork tubes are machines at a 3 degree angle from parallel to match the holes in the top clamp.

Re: Lower fork clamp

PostPosted: Fri Oct 26, 2018 3:58 pm
by No side stand
hugoct wrote:Standard lower clamp casting with ears for mounting the tops for the dust boots.
The holes for the fork tubes are machines at a 3 degree angle from parallel to match the holes in the top clamp.


Hi hugoct. Thanks for the interesting information on the 3 degree of fork angle. Is that fork angle information written in one of the R manuals. If not, where did you procure it from?
I have re worded my original query...Does the R lower clamp retain the boss on the outside edge of the fork clamp for the headlight shroud or is it smooth?
Regards Steve

Re: Lower fork clamp

PostPosted: Fri Oct 26, 2018 4:41 pm
by EKHKHK56
I have seen them in Factory photos. With bosses. Shaving was always an option.

Re: Lower fork clamp

PostPosted: Sat Oct 27, 2018 1:46 pm
by hugoct
The 3 degree angle is from the blueprint.

Re: Lower fork clamp

PostPosted: Sat Oct 27, 2018 5:24 pm
by No side stand
hugoct wrote:The 3 degree angle is from the blueprint.

Marvelous information hugoct. Thanks for sharing.
Steve

Re: Lower fork clamp

PostPosted: Sun Oct 28, 2018 9:09 pm
by EKHKHK56
I have some K Tree Examples. First year one -52 Lower with 4 small screw holes for Cow Bells. Needs matching Top Clamp. I'll show 2 early varieties. Also have 52A example showing stem angle difference. Has -57 Mod for rear Fork Boot Breather. Ok. Sounds more like a -54C! 54-B should
Match -54 top but still 4 small screw holes for F
holding Boot Clamp w/o large breather hole in rear which came on Sportsters. -57 K stuff. Also note lower Top Clamps. Even though Shaved, there are two -52 Early Styles. And 2 -54 styles. One cast only. One welded from factory. Ok yeah it's fun. Erik

Re: Lower fork clamp

PostPosted: Sun Oct 28, 2018 9:13 pm
by EKHKHK56
Top Photos 2 "Raked" 52, 53. 2 -54 One welded, one not. Bottom is shaved but not in weld area around stem hole.

Re: Lower fork clamp

PostPosted: Wed Oct 31, 2018 11:54 pm
by No side stand
At the fear of being labelled the slow kid of the class, I have to ask... How do I positively identify an R lower fork clamp.
Are the early K model lower clamps eg ( 45707-52 ) used as the R clamp for all KRTT, and XLRTT bikes?
Or is it something else.
Sorry teacher, but as soon as you say “Now pay attention”....my eyes glaze over. :oops: :shock: :geek: