S-Stage Big Bore Kit 181cc

About quality and texture: I am happy with the quality of the 181cc big bore kit from SP Takegawa. The cylinder is all aluminium with a ceramic painted finish and the piston is cast from aluminium.About the feeling of use: With the large increase in engine capacity and also increase in compression, the power in the lower RPM's is outstanding and higher top speed can be achieved with a change in gearing.Products to buy together: The sports camshaft from SP Takegawa would also be desirable to purchase along side the 181cc big bore kit as one is not included, this will help to continue producing more power in the higher RPM's.Difficulty of installation: The process to install takes about two hours and that includes checking all the ring gaps with no adjustment required before assembly. A little difficult to do but the Honda service manual has all the information to help you get the job done correctly.Cost performance and comparison with other products: Good costing as you are getting a high quality big bore kit with the large 181cc capacity that smashes the competitors. Not the cheapest kit avalable but still great value from one of the best companies.About shipping and packaging: Sea frieght was my perferred method of shipping due to the lower cost but currently unavailable due to Japan Post. Webike kept me updated on the status of my order up to when it shipped. The parcel arrived within the expected date range and was well packaged with no chance of the part being damaged.Any concerns, cautions, or advice when purchasing: If you are looking for a simple tuning option then the SP Takegawa FI-Con is what you want and if you are looking for the best tuning option then the aRacer Mini-X and AF2 is what you want but not currectly available from Webike.

High quality kit that is a huge increase in performance from a DHM stage 3. Install was easy. Wish I would have gone big bore from the beginning instead of trying a high comp piston.

About quality and texture - Top quality. I am very satisfied with the quality of the kit and the finishes on the ceramic coated cylinder and cast piston.About the feeling of use - After the initial install I was still using the OEM camshaft and was also very satisfied with the large torque increase in the low to mid RPM range as this is where I do most of my riding.Products to buy together - A camshaft is a great item to upgrade along with this bore increase. Webike have many to choose from and they vary wildly in pricing, it would be nice if there was some reviews by one person on all that is availble so we could make a better educated decision on which to choose.Difficulty of installation - I found this installation process challenging as this was my first top end upgrade but if you do your homework and have the correct tooling the job is of an average difficultly.Cost performance and comparison with other products - Since the Kitaco 181cc kits are no longer on offer here for the Monkey 125, this Takegawa kit is the only 181cc available but if you are happy to go slightly smaller Endurance offer a 170cc kit for almost half of this price.About shipping and packaging - I think Webike are doing their best with shipping pricing, so I'm happy. Packages ship within 24 hours and arrive very quickly from Japan.Any concerns, cautions, or advice when purchasing - Take into consideration the piston from Takegawa is cast and the piston in the 170cc Endurance kit is forged, if that is something you would prefer.

This S stage 181cc bore up kit from Special Parts Takegawa is a great complete kit for a top end rebuild that results in a nice torque increase. The kit comes with everything you need and helpful instructions once you translate them for a successful installation. Webike does offer many kits like this from other companies and some maybe cheaper to purchase but I chose Special Parts Takegawa as I have had great experiences with their other products I have used on my Honda Monkey 125. If you have questions about parts from Special Parts Takegawa do not bother asking them directly as they never responded to me, just ask Webike as they never fail to respond due to their great customer service.