straight leg ridgid

Identification information of frames and transmissions
Post Reply
socalrider
Posts: 382
Joined: Sat Jun 14, 2008 5:22 am
Bikes: 1963 pankenstein ; 1965 flh ; 1978 shovelhead lowrider
Has thanked: 21 times
Been thanked: 38 times

straight leg ridgid

#1

Post by socalrider »

looking at a ridgid straight leg frame thats for sale. dont know enough to make an educated purchase. how can i tell what year it is? what should i look for to determine h.d. authenticity? i read some of the knowledge base posts on this but still not sure on where all the casting numbers should be or what the numbers should be. any and all help is much appreciated.
gracias,
arnulfo



RUBONE
Moderator
Posts: 6131
Joined: Sat Nov 15, 2008 4:09 am
Bikes: Multiple H-D, Ducati, BMW, Triumph, BSA,...
Has thanked: 117 times
Been thanked: 1142 times

Re: straight leg ridgid

#2

Post by RUBONE »

First off is it Pan or Knuckle, two very different beasts. Do a search on this forum, it has all been covered in detail in the not too distant past. Pan frames have two digit code on the right side of the seat/tank mount. It will give year and month of manufacture. If it is chopped or missing mounts it is a crap shoot. Pictures are a necessity to ID properly. You do have a copy of Palmer's book, right?
Robbie

socalrider
Posts: 382
Joined: Sat Jun 14, 2008 5:22 am
Bikes: 1963 pankenstein ; 1965 flh ; 1978 shovelhead lowrider
Has thanked: 21 times
Been thanked: 38 times

Re: straight leg ridgid

#3

Post by socalrider »

robbie,
unfortunately i dont have a palmers at this time ,but will be aquiring one. i searched the knowledgebase but found no clear ansewers. is there another method of searching for this info? it supposedly is a panhead frame. there are cast numbers on the rear axel mounts, brake mechanism crossover tube, but nothing on the gas tank/seat mount. should the tank/seat mount be one piece with the upper motor mount or 2 individual pieces welded above the motor mount?
gracias
arnulfo

panhead
Site Admin
Posts: 2799
Joined: Wed Dec 12, 2001 9:17 pm
Bikes: 1954 FL
Location: Holland
Has thanked: 29 times
Been thanked: 169 times

Re: straight leg ridgid

#4

Post by panhead »


panz4ever
Posts: 571
Joined: Fri Aug 12, 2005 5:45 pm
Bikes: EL, FXE & FLH
Has thanked: 3 times
Been thanked: 22 times

Re: straight leg ridgid

#5

Post by panz4ever »

RUBONE wrote:First off is it Pan or Knuckle, two very different beasts. Do a search on this forum, it has all been covered in detail in the not too distant past. Pan frames have two digit code on the right side of the seat/tank mount. It will give year and month of manufacture. If it is chopped or missing mounts it is a crap shoot. Pictures are a necessity to ID properly. You do have a copy of Palmer's book, right?
Robbie
Robbie, does that include all pan frames? My 49 has no such markings. Thought that was something on later pan frames?

RUBONE
Moderator
Posts: 6131
Joined: Sat Nov 15, 2008 4:09 am
Bikes: Multiple H-D, Ducati, BMW, Triumph, BSA,...
Has thanked: 117 times
Been thanked: 1142 times

Re: straight leg ridgid

#6

Post by RUBONE »

Panz4ever,
The numbers are not on early frames, but they are on ALL STRAIGHTLEG Pan frames, the topic of this thread!
Robbie

panz4ever
Posts: 571
Joined: Fri Aug 12, 2005 5:45 pm
Bikes: EL, FXE & FLH
Has thanked: 3 times
Been thanked: 22 times

Re: straight leg ridgid

#7

Post by panz4ever »

Opps, wasn't thinking Sorry

hogboy52
Posts: 89
Joined: Wed Jul 09, 2008 3:59 am
Bikes: 52FL, 62 BMW R60
Location: New Old Lompoc
Been thanked: 1 time

Re: straight leg ridgid

#8

Post by hogboy52 »

The two are easy to tell apart. The top of the knuckle frame is a straight line front to rear. The pan frame has a definite hump and curvature at the seat-post area to clear the taller head of the pan motor.

socalrider
Posts: 382
Joined: Sat Jun 14, 2008 5:22 am
Bikes: 1963 pankenstein ; 1965 flh ; 1978 shovelhead lowrider
Has thanked: 21 times
Been thanked: 38 times

Re: straight leg ridgid

#9

Post by socalrider »

thanks for all the help everyone. under better light spotted a c 7 just below the tank mounts,that along with the axel mount numbers, and numbers by the brake crossover tube tell me the frame is h.d so i bought it .it also has a damaged neck lock.
arnulfo

Bigincher
Posts: 2789
Joined: Tue Dec 18, 2007 2:10 pm
Bikes: 1941/59 EL
1952 FL
1977 FLH
1994 Fatboy
Has thanked: 21 times
Been thanked: 103 times

Re: straight leg ridgid

#10

Post by Bigincher »

You're lucky that the original gas tank / seat T mount is still there! The "C-7" indicates the date of the frame as March of 1957. Last year of the rigid frames!
Sounds like a heck of a score, but you may want to jig it up and check it for straigtness. You can use the illustration on page 36 of the 1948-57 Service Manual as a preliminary guideline.

socalrider
Posts: 382
Joined: Sat Jun 14, 2008 5:22 am
Bikes: 1963 pankenstein ; 1965 flh ; 1978 shovelhead lowrider
Has thanked: 21 times
Been thanked: 38 times

Re: straight leg ridgid

#11

Post by socalrider »

Bigincher,thanks . I dont have a jig but it already at a shop that specializes in frame straightening

Bigincher
Posts: 2789
Joined: Tue Dec 18, 2007 2:10 pm
Bikes: 1941/59 EL
1952 FL
1977 FLH
1994 Fatboy
Has thanked: 21 times
Been thanked: 103 times

Re: straight leg ridgid

#12

Post by Bigincher »

socalrider wrote:Bigincher,thanks . I dont have a jig but it already at a shop that specializes in frame straightening
Please tell me that shop isn't the one in Sacramento, 'Man'..?!! If so, go get it back... QUICK!
There are still some shops out there that really know Harley frames.

socalrider
Posts: 382
Joined: Sat Jun 14, 2008 5:22 am
Bikes: 1963 pankenstein ; 1965 flh ; 1978 shovelhead lowrider
Has thanked: 21 times
Been thanked: 38 times

Re: straight leg ridgid

#13

Post by socalrider »

No, its here in l.a. dealt with him befoe .hes been doig harleys sin ce early 70s

Post Reply

Return to “Frame / Transmission”