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My 1300ccm Big-Bore RnineT Pure Café Racer

7380 Views 39 Replies 13 Participants Last post by  R9TVR46
Hello folks and greetings from Germany,

i would like to show you my 1300ccm Big Bore Pure Café Racer from 2017. It's gonna be a longer post, sorry!

It started like this about a year ago when i sold my 1250GS as it bored me to death and bought this used Pure that had some minor mods installed like a short rear and a relocated numberplate.

at first i did some basic changes like unit garage exhaust but sold that one pretty quickly as it was just too obnoxiuosly loud and the sound wasnt good either + im pretty sure that it loses ponys, went for the aftermarket akra and also installed clip ons

then i figured that i want to go all in on this bike as i LOVE it, that meant stopping with the basic mods and stripping the whole thing

powdercoating all the silver parts and getting the all aluminium tank from the Euro 3 Models, i just like it more than the euro 4 ones as they dont have the shiny coating. also upgraded the suspension to öhlins in the front and Bielstein in the back

went for the urban GS seat and backpiece with the rizoma cover and tiny lights, was happy with the result....for a while 😁

the aftermarket akra still didnt do it for me as it did not have that great deep rumbling sound from the stock can and when i called my tuner he said that for performance the double oem akra pipe would be very good so i installed it together with the zard headers and got a big bore kit installed

old vs. new piston, you can see a noteable difference

the stock dyno run resulted in 113HP and 113Nm
after the big bore kit and custom mapping we are looking at 132.3HP and 140.4Nm

sadly the dips in the middle cant be flattened easily because of the airbox and that would require some mods that will make me lose performance on other parts of the curve and i need to keep it somewhat street legal but i am still very happy with the results!

and this is how she looks today

i am finished with this bike (for now 😂)

all the mods done to the bike:
  • Big Bore Kit 1300ccm
  • Zard SS Headers
  • Small front fender
  • Öhlins fork cartridges
  • probrake Clip Ons
  • lowerded the tachometers by 7cm
  • underbar mirrors
  • brake/clutch levers from Wunderkind
  • silver parts powder coated in black
  • Wilbers steering damper
  • LSL footrests
  • urban gs seat and back
  • kellermann tiny indicators/lights front and back
  • Bilstein shock/damper in back
  • HeinzBikes number plate holder
  • K&N air filter
  • OEM double akra can
  • unit garage intake cover
  • side stand from the scrambler

over the winter im planning to tweak the cylinder heads for a better airflow which will probably result in a few more ponies and a bit more torque, amazingly enough this is not even the end of the 1200ccm air cooled boxer, replacing the crank and camshaft will get you up to 1400ccm and over 150Hp / 150Nm but that is too expensive for the gains.

if you have some question i try to answer them. 🤟
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Wow what a great build! :) Where did you get the big bore kit? :)
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