Owner of Radical SR3 RSX and SR3 XX
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Liked Forum Posts

Engine rebuilt time or not?

On my 2021 SR3 XX with 1500cc engine, I would like to know more about recommended engine rebuild. Is the Radical recommendation of 40 hrs mean run time or load time? My car currently has 45hrs run t...

In forum General Discussion

4 years ago
RE: SR3 shifting issues very TRICKY!

Problem solwed!!! The magnet in nr39 was lose. Now when its is changed its shift perfect. Thanks for all help.

In forum General Discussion

4 years ago
RE: Video on how to change Gear Ratio sets in the SR3 Gear Drive Unit (GDU)

This is what it looks like. I use a 1/2 inch drive by 5 inch length wobble extension and a 1/2 to 3/4 adapter. The adapter touches the frame and has scraped off a little powder coat, but this setup w...

In forum How To / DIY Discussions

4 years ago
RE: Updated "Identifying Radical Model Years By Chassis Number" Guide

Hi Rod (@rjbender), It is my understanding that the billet uprights and the Halo are both options... But I am not 100% sure.

In forum General Discussion

4 years ago
RE: Video on how to change Gear Ratio sets in the SR3 Gear Drive Unit (GDU)

30mm. Overall height is 46mm.

In forum How To / DIY Discussions

4 years ago
RE: Video on how to change Gear Ratio sets in the SR3 Gear Drive Unit (GDU)

Posted by: @rjbender The photo of the machined socket really helps! Any chance you could tell me what; - the overall length is? - the inside depth is after you have machine it (ie, the maximum heigh...

In forum How To / DIY Discussions

4 years ago
Updated "Identifying Radical Model Years By Chassis Number" Guide

With the help from some friends at Radical I just updated the latest Revision to the "Identifying Radical Model Years By Chassis Number" Guide. The latest version shows the start of the 2022 model ye...

In forum General Discussion

4 years ago
Radical SR3 GDU Exploded view and parts list

The only Parts List and Exploded view I have been able to find for the Radical SR3 Gear Drive Unit (GDU) has such small writing that it is extremely difficult to read... So I modified it so it is now ...

In forum How To / DIY Discussions

4 years ago
RE: Radical SR3 GDU Exploded view and parts list

Awesome work sir, this will be so useful for a lot of people!

In forum How To / DIY Discussions

4 years ago
RE: Have i already broken my starter motor?

@rojid Glad its sorted! The corrosion may have been something to do with it but I have also heard that with a low battery voltage it keeps spinning the starter (but not fast enough/with enough RPM fo...

In forum General Discussion

4 years ago
RE: Video on how to change Gear Ratio sets in the SR3 Gear Drive Unit (GDU)

Nice. I use a Snap-on bent 8mm/10mm wrench for brakes and clutch bleeders. It is tight but it gets the job done. Attachment : image.png

In forum How To / DIY Discussions

4 years ago
RE: inspection/should do

Yes, you want lube on mating conical bearing surface to prevent galling. I typically put on vinyl glove, hold the nut in that hand and very light spray graphite over conical mating surface which inhe...

In forum SR3 Specific Discussions

4 years ago
RE: inspection/should do

@meatman< there are a lot of opinions on this subject and I don’t know that I know the correct answer, but reading the tread on the subject is a good idea. With that said, one of the inspections ...

In forum SR3 Specific Discussions

4 years ago
RE: Video on how to change Gear Ratio sets in the SR3 Gear Drive Unit (GDU)

@rjbender Hi Rod. Unfortunately I cannot give you exact measurements at the moment. In the photo of the two 42mm sockets above, mine is on the left and the machined-down one belongs to WISKO on the...

In forum How To / DIY Discussions

4 years ago
RE: Video on how to change Gear Ratio sets in the SR3 Gear Drive Unit (GDU)

@rjbender The manual says 33mm, but it is actually a 32mm. Also, it is a tight fit for a 42mm impact socket, so these need to be milled and lathed down to clear the frame. The shop rag method that ...

In forum How To / DIY Discussions

4 years ago
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