Derbi Senda 50 Enduro to Supermoto conversion?

Hello,

So me and my friend both have Derbi Senda 50 for some time,
And figured we need to get Supermoto wheels. Ours came originally with 21" front and 18" back, but if we do the switch to 17", most of them have the oversize 300mm front brake disk. I got myself a deal for 85 euro, to get the GPR 50's 17" wheels, but it has the big front brake disk.




I see a lot of Supermoto conversions use caliper adapters, but I can't seem to find ones that would fit my bike. Where can i acquire these? Is there anything else? Thank you!

 

Swap the disk over.
I'm sure they are the bolt pattern

 

Or you need to swap the forks over. The gpr/rs 50 have radial mounted caliper.

 

Hey! Well, this is the problem, the bolt patterns sadly do not fit,
this is the pattern of the disks I have now:

I just checked, sadly, yes they have the radial mounts, while my Derbi does not. Thank you very much for saving me the 100$ . Do you personally recommend me to search for other disks, like in the picture, or look for other options?

 

Use a back disk on the front?

 

Well, I bought it as it is now, but my guess would be.... no?
I can give you this picture:

As far as I know, I do not. Why?

 

Make a caliper extension bracket, search this forum on how I did mine.

 

I'd keep the enduro wheels in that snow !!

 

I'm so sorry, I just woke up, read the question again and finally realised what you meant.

I actually never thought of that, thank you!

 

That's kinda what I was ready to do, cause I see only ones for 100$. Just searched through your posts, couldn't find it honestly. Could you please give me a link? Thanks.

Well I don't go offroad and since Supermoto is "the thing" when you go to meets etc., it makes your bike look waaaaay better than the enduro, and my tires seem to be worn out anyways :/.

 

I prefer the enduro.
I worked for a main dealer and would say 99% of the bikes where supermotos.
It's way better to be different.

 

How did you get on derestricting and jetting the bike ?

 

It's not that I hate the Enduro wheels, in fact, they look really good, I'ts just that I want to be able to choose from both, since I have Off-Road tires for these set of wheels, and want to also have the "sportier" look with the supermoto's

Also, sorry for the off-topic question, but how do you switch from mph to kmh on the digital speedometer? My friend's having this huge problem.

 

I filed the exhaust and put an 82nd main jet, since I had the 74th. I have to check the intake for the limiter ring, but I think I don't have the cerburetor limited.

 

I think you hold the button on, turn the key on then off while still holding it.
But that might just reset the service warning.

 

Nice, what’s the top speed like now ?

 

Hmm, will try. Thanks. The service mode is done by holding the mode button on the sevice tab. Tried removing the ground from the battery and turning it on and almost everything else. So far not good.

 

Well didn't quite try it since my rear wheel spokes broke, but the best I got was 70kmh, but it wasn't on full throttle, cause my clutch wan't adjusted correctly and was slipping. The gearing is 11/60.

 

How did the spokes brake !?

 

To be honest I have no idea. I bought the bike and the wheel was going from left to right when sat on from an angle. Tried to tighten the spokes, nothing good. Recently took to an Enduro repair shop, the guy told 15 spokes were bad and showed the places within the hub, where the ends broke off. It looks like this wheel was like that for quite a long time, since the protector is worn out unevenly.