Origin Live Rega Modification Kits - Manual (Page 8)

8
Arm Structural Modification
P A R T S
Rear stub & Counterweight
Threaded insert, Allen bolt
Fitting bolt with “locked nuts”, 3mm Allen key, serrated washer
2 large spacing washers for VTA adjustment if needed
T O O L S Y O U W I L L N E E D I D E A L L Y
Pliers or molegrips
I N S T R U C T I O N S F O R T H E R B 2 5 0 / 3 0 0 / 6 0 0 / 9 0 0
S T R U C T U R A L M O D I F I C A T I O N
Please find parts enclosed. They do not represent time in machining, but countless hours of development, testing, and
listening. The best ideas are always simple and what started off as a highly laborious and expensive job of inserting a
bicycle spoke down the entire length of RB250's has now been gradually refined. So, now onto the procedure that will
transform your arm.
1. Remove the rear stub by gripping it with a pair of molegrips (or similar) and GENTLY unscrewing
it.
44. Screw in the small threaded insert into the end of the arm till it is approx. 1.5mm inside the end face
of the arm tube. This can be accomplished with the bolt and nuts supplied. Now comes the tricky
part (sometimes) - you need to withdraw the bolt leaving the threaded insert in the same position.
The trick is to lever the bolt sideways as you unscrew it. This has the effect of jamming the threaded
insert against the outer threads while allowing the 4mm bolt to be withdrawn. If this procedure
doesn't work first time, try again ensuring that the bolt hasn't become too tightened onto the
threaded insert.
45. Now tighten the rear stub onto the rear end of the arm tube as the diagram below shows. The
correct torque is achieved by tightening to hard using the short end of the Allen key in your fingers
(not the long one or torque will be too high). High torque is not beneficial! It will prove most
rewarding to listen to various torque settings till it sounds just right. So there it is - not too difficult
we trust.
NEW REAR STUB
THREADED INSERT
AND BOLT FASTENING
NEW COUNTERWEIGHT
BOLT
COPPER WASHER
REGA ARMTUBE
DIAGRAM OF THE ORIGIN LIVE
STRUCTURAL MODIFICATION