It has been more than one year since I last posted any updates on the F4.
I was waiting for an air filter, oil filter, a few performance parts, and new clutch to carry out upgrades on it.
The bike was not ridden for the past few months due to the terrible weather. I use this bike sparingly as I like to pamper it. With the winter riding season soon approaching, I decided to get down and dirty and carry out the much needed upgrades.
1. Air Filter
I never knew searching an air filter is going to be such a challenging experience. But boy, I learned so much about filters. I can now write a dissertation on it.
The F4's original oem filter is not available. The supplier doesn't make it anymore and you have to wait months from your order. After market options are BMC, DNA and Sprint. BMC and DNA only made filters for 2010-12 models, while the F4 underwent slight changes in the 2013-17 version. So BMC and DNA were out. Also, BMC needs yearly cleaning with the filter oil and I prefer to just clean using soap, water and air. I heard a lot of good things about Sprint, especially as they are now the product partner of Ducati and Aprilia and the EU spec bikes are installed with Sprint air filter. Even Akrapovic uses Sprint for its full system exhausts. The filter is priced slightly higher than BMC (between 6.5 - 10k INR, depending on bike model) but it performs better and has lifetime warranty + usage so that suited me. It is made of polymer instead of paper and has a much higher filtration rate, which is well suited for our Indian road conditions. So ordered the filter.
And then I found out that Sprint only makes the race spec filter for the F4. The race spec is a Carbon Fiber edition that costs a cool Rs 35,000 before GST, duty and shipping. It has a much higher filtration rate and claims to bump the engine HP by 5 horses. The ECU does not need to be remapped. With no other choice in the market, I clicked on the buy now button and felt my savings flush down the toilet. Not that I needed extra 5 hp. It's either buy the Sprint Filter, or chase the OEM supplier for months, or years.
When the filter arrived, the landing price was a mind numbing, eye watering Rs 56,000. Yes, you read that right. I didn't add an extra zero. This is the price for an off the shelf air filter for a limited production Italian hyperbike that is no longer sold in the market.
https://www.sprintfilter.net/motorcy...ir-filter)/821 2. Oil filter
Again the OEM oil filter was not an option as I had to wait months from the manufacturer. A quick google search showed me that HiFlo made filters for the F4. And the best bit, it's available in India through Motousher. They had the last 2 pieces in stock, so quickly bought those for Rs 1,000 each.
3. Headlight protector
The F4 headlight is one single unit. If you have to replace the glass cover, you have to buy the whole unit. This is really bad designing from the Italians. I am paranoid about stone chips or road debris flicking on to the glass cover and cracking it. I was searching for custom headlight protectors, and fortunately came across this awesome company located in Australia called Zed that makes acrylic headlight protectors. They make for a wide variety of bikes, so I ordered for the F4, Brutale and 1198. It is reasonably priced, and with the shipping and taxes, came at a much lower rate than my Sprint Filter bombastic purchase.
4. Lightech lever protectors
I have a thing for Lightech. I love the brand quality, the designs and the fact that they have a huge part list for customizing bikes. TBHPian Rohan Dheeman also uses the brand for his BMW S1000RR and I wanted to get lever protectors. My major gripe riding in India is the traffic that comes from the sides and often bumps against you at signals or standstill traffic. Tipping over and damaging my clutch or brake lever will put the bike instantly out of action and it's better to have the levers protected. I ordered the aluminum lever protectors from Lightech. Boy, they really look good and change the visual aspect of the bike.
5. STM Evo Slipper Clutch
I had no intention of installing an aftermarket clutch. But the unfortunate reality is that, this bike, under its previous owner was handed to several influencers who promptly did cold starts and revs, thereby ruining the clutch plates and the clutch assembly. I was aware of this issue when I bought the bike and was considering the correct course of action. Again, for this bike, the OEM clutch assembly is hard to get so aftermarket is the only way to go.
Among aftermarket specialists, STM is the most reputable manufacturer of clutches. Unfortunately STM is not available in India and the F4 clutch is always on pre-order with overseas vendors.
I called my brother and asked for his assistance. He used his network, and procured a WSBK race spec STM Evo wet slipper clutch for the bike. The thing took 3 months to manufacture. When I received it, I raced to my FNG to install it, and promptly forgot to take any pictures. Changed the clutch plates also - got the ones from New Fren.
The clutch was a pricey item but it's expected as both OEM and aftermarket clutches are an expensive affair. The tab on this metallic gizmo was a punitive Rs 1.1 lacs.
https://www.stmitaly.com/s-mvf4100rr_en.html
Morale of my story is - take care of your clutch.
Finally, got the bike ceramic coated. All things completed, the bike looks rather dapper. I still have a few bits I want to work on, but it is minor in the grand scheme of things.
Below are the pics of the finished product.
The super crazy carbon fiber Sprint Air Filter and the box it comes in Working on the OEM clutch and replacing with the STM (don't have the STM in the picture) Lightech and Zed protectors attached Final result