Four Stroke Engine Services

EAmato88
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EAmato88

I am looking for suggestions for engine services. I know the big names, XPR and Twisted, but who else have you guys used with good results? Im looking to have an engine package built for Lorettas, nothing wild, but want a good running 250f that will be easy to ride and capable of good starts assuming the rider does his part.

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jameslowry
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pearl, MS, USA
jameslowry 6/9/2026 9:52am
6/9/2026 9:52am
EAmato88 wrote:
I am looking for suggestions for engine services. I know the big names, XPR and Twisted, but who else have you guys used with good results...

I am looking for suggestions for engine services. I know the big names, XPR and Twisted, but who else have you guys used with good results? Im looking to have an engine package built for Lorettas, nothing wild, but want a good running 250f that will be easy to ride and capable of good starts assuming the rider does his part.

Pro Circuit !!!!

lumpy790
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York, SC, USA
lumpy790 6/15/2026 6:28am
6/15/2026 6:28am
EAmato88 wrote:
I am looking for suggestions for engine services. I know the big names, XPR and Twisted, but who else have you guys used with good results...

I am looking for suggestions for engine services. I know the big names, XPR and Twisted, but who else have you guys used with good results? Im looking to have an engine package built for Lorettas, nothing wild, but want a good running 250f that will be easy to ride and capable of good starts assuming the rider does his part.

Chuck at Privateer Connection in Rock Hill SC builds lots of LL bikes every year.

mshea397
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mshea397 6/16/2026 5:13am
6/16/2026 5:13am

RaceTech. 

2
seth505
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SD, CA, USA
seth505 6/16/2026 8:37am
6/16/2026 8:37am

I have used Bakerspeed (Dean Baker) and TMR (Tom Morgan Racing). Both were excellent in their attention to detail and communication.

1

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Mike_Lawrence 6/29/2026 6:37am
6/29/2026 6:37am

I suggest David Walls from DWR, he offers good packages and can do REM isf. He is here around @dwallzee 

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