125-200cc Another 165 review

I was very cautious about doing this conversion as I was concerned that I wouldn't like the loss of top end that some have reported. I had a KTM 200 and didn't like it as it seemed to hit a wall wheras the Wr125s kept going.
I had the CR 144 going really well with fatty pipe but wanted to convert the old 08 125 cylinder to a 165 I just had to do it to see what it was like.
Fitted the 165 kit with the 125 fatty exhaust as I was curious as to how it would run and didn't want to go to expense of a new pipe yet.
As soon as I fired up the bike I could tell it was running well. Revved really nicely, sounds deeper and really crisp.

First ride today.
All I can say is thankyou Walt this motor is awesome.
Pulls better immediately and has a great mid range hit . Keep it open and it just keeps winding up . There is plenty of top end. I love that it still feels like a 125 only with so much more low to mid
Changed back to a 50 rear sprocket and it is so nice to have higher gearing too.

My 144 feels harsher the 165 smooth and meatier. It feels like Walt has worked his magic on it .
Its power is addictive - sounds so sweet.
Being able to pop the front wheel up over the bumps and launch better of mounds is much fun .
Power wheelies are a case of... how long ?
Pulled up hills so much easier - and faster . Easier to keep momentum .

I know guys say there is more low to mid with a 200 pipe but this feels great as is.

I am very happy and recommend anyone who is on the fence to just do it - Its awesome

Great report Rock Dancer. I keep saying that when I have redo my bike it will be a WB 165.

I Know what you ask for Christmas

and for sure you will thank the Santa for the FMF an lectron

its simply a curve of progression you follow

Have fun with it

Robert-Jan

The older TMX is running beautifully - ever since I went to CR ignition and 144 - it just rips
Maybe if the gods of $ shine on me.
The thing for me is I like to swap things around and run 144 so its good to have a pipe that works for both.
I love the handling of this 08 too - now I fixed the swing arm and linkage bearings. The 45 mm marzochis are my favourite -
I also think the turbine core fmf silencer is a must for trail riding

LOL we told you you were gonna like it ! It really does get even better with the 200 pipe too. The WB165 is so good I can't decide on which new bike to get . Enjoy .

Like it - I looove it !
Why change bike John ? A 2013 WR165 might be what youd like though
Work is getting busy so you know I will do the other things - eventually - it will eat away at me
don't have any old 200 pipes around ? LOL
I took that black paint off your old pipe and it looks good

I won't be changing bikes I'd just be adding another one . LOL no I don't have any 200 pipes laying around but giving away the 125 Fatty shows how much better the 200 is on the WB165 . I told my buddy not to paint that pipe but he thought it would be prettier painted than with the heat spots from blowing out the dents .