The Chopper Compendium

Yea its not the whole frame . I measured off the paper version , the scan version plays with my eyes

this is the same neck cast as early short frame scout = corrections made to list

fork rake is 25*
rake axis to down tubes = 45*
down tubes to top rail = 70*
top rail to rake axis = 65*
down tubes = 20*
rear top legs = 30*

45 + 70 + 65 = 180*
45 - 25 = 20*

they reakon the 101 was the best handling Indian

another pic of wheel base .
at some stage Ill get frame measurements. Theres no info on the net = hold outs!

this is awesome information. Thank you for the time..

It's cool to see someone doing these prints!
Dusty

Thanks for taking the time to post this.
I was looking online for a few minutes.

http://bastybikes.blogspot.ca/2013/07/n ... t-101.html

101 rear axel plates are also used on 741 . (source indian parts europe , Im yet to confirm measurement)

640 is longer than 741 , longer legs set the axel plate up higher which lowers the bottom rail of frame .
I havent seen any info saying that there were 2 separate axel plate casts. (640 vs 741)

early scout axel plate cast is the same except there is no side car hoops (1920 - 27)
(CORRECTION : NO IT AINT!! = APPEARS TO BE 55 DEGREES BETWEEN TOP AND LOWER LEGS FOR SHORT FRAME)

lower leg = 1 1/8 " tube
top leg = 7/8" tube
the axel slot is set at 20 degrees which is level with bottom of frame

http://virtualindian.org/9blueprintspic1.htm

Almost the same except 640 and 741 plates had a cast in raised pad for serial numbers.

Ive got a 26 frame that I have to derust ,straighten , measure , ideally rebuild....experts recommend straighten then braze FILL!!!

my main reason for measuring everything and hunting for any info and continuing to do so.
Id prefer to replace the tubing as indians rust from inside out also.

early axle plate slot is 20 degrees and the bottom leg is 20 degrees making slot level .
I keep measuring the angle between lower and upper leg looks like 55 degree which is a "short frame" having steeper legs
therefore , 20 degree , 55 degree , difference = 35 degree for the top leg

virtual indian blue print guys say 50 degree on legs for axle plate and 20 degree on lower bend (but thats a 640 frame they drawn which sits lower than 741)
bloody confusing to me ,Id expect axle slots to be level on both frames

jerry greer frame diagrams appear to be 50 degrees .... but the lower legs look 15 degree OR my eyes are stuffed!
printed version may be more realistic like the scan I put at top of page is slightly different from printed version so maybe scanners fish eye scans a bit.
grain o salt with any thing on the net

20* , 50* diff= 30* top legs
15* , 50* diff= 35* top legs

this is relevant to 101 geometry as the first pic at top of page has top leg sloping at 30 degree , the V.I blueprint has axle plate at 50 degree and my frame is 20 degree on the lower leg bend and 20 degree being the diff between 50 and 30.
the 2nd pic of 101 frame shows measurement from axle slot to motor mount etc

https://www.jerrygreersengineering.com/ ... 1941&m=741

Ive got 25 scout cases and 101 cases plus trans case Ive measured

1925 = 11.4295" long x 3.525" high , centre pedastal mount holes to centre trans mount hole
101 = 15.15625" long x 3.150" high , centre thru bolt mount hole to cetre trans mount hole

these measurements are MINUS the 4 x shims that go between trans and motor , S2205 = 20B797 , .003" shim OR S2205A = 20B798 , .005" shim

on the V.I blueprint chief legion frame
1944 chief = 15.3129" long x 2.8125" high , according to Legion frame = http://virtualindian.org/9newslegionpic1.htm

this is relevant to 101 chout = chief motor in scout frame

Pic = 1927 police special used early scout frame geometry with 101 style thru bolt mount , the axle plate is the first to have side car hoops like 101

This frame here is not Indian dimensions but still a classy design , plans are for sale for custom bike.
Its a good concept to have a frame to suit 741 motors

hansgoudzwaard wrote:Thanks for taking the time to post this.
I was looking online for a few minutes.

http://bastybikes.blogspot.ca/2013/07/n ... t-101.html

INDADJUST.JPG

heres a pic just to confirm the angle between rake line and down tubes is 45 degrees using 2 square edges then measuring the result angle.

This neck casting is the same one used on short frames and 101 frames.

Rake is set based on the position the neck cast is set in the original factory frame jig.

If the top tube is horizontal level then rake can only be 25 degrees . The top tube socket is 65 degrees from the neck centre line