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derbi senda drd pro exhaust, crank, sprockets?

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aaroncarter12...
Derestricted Danger



Joined: 09 Aug 2012
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PostPosted: 14:58 - 28 Sep 2012    Post subject: derbi senda drd pro exhaust, crank, sprockets? Reply with quote

i have a derbi senda drd pro mallosi edition 57 plate, it is derestricted. i have a 15t front to 53t rear.

atm the average speed is about 47mph, and the top speed i have got out of it is 53mph. Are there any tips or ways to make the bike more powerful?

i was wondering if anyone knew which was the best exhaust to get for these that will give more power after upjetting?

also, will a racing crank help reach its top speed quicker?

any opinions would be great Very Happy
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bikertomm
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Joined: 03 Jul 2010
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PostPosted: 15:01 - 28 Sep 2012    Post subject: Reply with quote

My mates Derbi senda tops out at about 55..

To be honest that's realisticly the most you're going to get out of it, enjoy it for what it is.

in b4 you get raped -

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aaroncarter12...
Derestricted Danger



Joined: 09 Aug 2012
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PostPosted: 15:05 - 28 Sep 2012    Post subject: Reply with quote

bikertomm wrote:
My mates Derbi senda tops out at about 55..

To be honest that's realisticly the most you're going to get out of it, enjoy it for what it is.

in b4 you get raped -

Thumbs Up


shall i leave it and save my money then? will an aftermarket exhaust not do a lot?
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Matt-
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Joined: 19 Jul 2012
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PostPosted: 15:17 - 28 Sep 2012    Post subject: Reply with quote

I have seen most geared High performance 50's, RS50 , RX etc...

Hit 60mph, just with Upgraded exhaust ( tuned expansion chamber with correct jetting ) Foam filter, with changed sprockets...

It is possble to hit 65 so i hear on youtube but that's just to much money invloved and NOT worth it.

My advice is use it for what it is, then get a RS125 Wink

Matt
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Current Bike's - Road Legal TZR 125 Pitbike, Aprilia SR50R 2010
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_Iain_
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Joined: 01 Feb 2012
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PostPosted: 15:54 - 28 Sep 2012    Post subject: Reply with quote

If its the AM6 engine then they're pretty tuneable.

Questions is, how much money do you have.

You COULD probbably fettle 70mph out of that engine. However it'll need a rebuild about once a week & will probbably full on grenade itself once a month.

Not worth fecking about with. Use it, dont buy an RS125 far far more hassle than is worth, if it's got to be a two smoke 125 the yamaha DT's and the derbi gpr's share a pretty reliable lump.

However at that point the standard "buy a commuter and do tests" applys.
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Please be aware that the above post may be full of complete nonsense.
Riding: '07 KTM Duke II Driving: '88 Volvo 340
Previous: 1998 Honda C90, Suf*ckinzuki GS500E, 2011 Yamaha YBR125, 06 Skyteam Monkey 125, '96 Mk1 Suzuki Bandit 600, '86 Honda H100 '96 Honda CR125
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aaroncarter12...
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Joined: 09 Aug 2012
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PostPosted: 20:39 - 30 Sep 2012    Post subject: Reply with quote

_Iain_ wrote:

Not worth fecking about with. Use it, dont buy an RS125 far far more hassle than is worth, if it's got to be a two smoke 125 the yamaha DT's and the derbi gpr's share a pretty reliable lump.


i was hoping to do my bike test when i'm 17 to get a bigger bike than a 125cc Razz although they might be changing the laws Sad
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bikertomm
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PostPosted: 21:00 - 30 Sep 2012    Post subject: Reply with quote

Nah. They are changing the laws mate :'(
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g3volution
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Joined: 04 Oct 2012
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PostPosted: 12:21 - 08 Oct 2012    Post subject: Reply with quote

I have a 57 drd pro malossi edition, i get about 65 on flat without head/tail wind.

owned from new and ridden in 500 miles before buying a new jet, front sprocket and a metrakit thrower exhaust (washer removed).

The jet I was told to use by a number of derbi dealers didn't work for some reason, possibly a slight variation in the carb of the malossi edition? either way i ended up taking it in to a local dealership who after 2 days of pissing around with it got it set up beautifully with a different size jet (sorry, forgot what size i'm using now).
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