According to Rikulau, Vulcan Seamless Stainless Steel is...
I got this custom frame not because of that I appreciate the material (I don't know much about this material). Rather, I need a bike that suits my geometry of seat tube angle 72° / top tube length of 540 / saddle to handlebar drop of 60mm. There is no mass-produced bike frame to be even close. My bike fitter Mr Liu agreed to help me designing a bike around my geometry and the Rikulau custom frame is the answer.Vulcan (V9) is a seamless tubing based on C465 stainless steel developed and patented by Carpenter, USA. It is a martensitic alloy that can be age-hardened through proper choice of heat treatment condition to enhance strength. It is now widely applied in the aeronautical and military industries. C465 is also the raw material Reynolds uses to develop 953 tubing. 953 is a welded tube, while Vulcan is the first seamless tubing made of C465 in the world. Tube-making and heat treatment are accomplished in Taiwan. Through chosen age-hardening heat treatment temperature, Rikulau is able to achieve a balance in tensile strength (about 1800 MPa) and good ductility on V9. Thus, Vulcan is eligible to build a race-oriented light-weight and stiff frame.
SRAM eTap only
I am a SRAM fans so obviously I'd stick with eTap. Hopefully eTap would last many years as this frame is eTap only. There is only one pair of rear brake hose ports on head tube and bottom bracket shell. I didn't aware of the brake hose routing issue when I purchased the Chris King ThreadFit 30x T47 bottom bracket. The protective sleeve diameter is ard 37.3mm, which leaves very tight space for the 5mm brake hose to pass through the space between the sleeve and bottom bracket shell. Since I left this build job to my LBS, I hope the mechanic don't swear too much when assembling
p.s. The Plan B is to change to CeramicSpeed T47/68, which should have enough clerance judging from the product photo. Won't consider WheelsMFG as the Enduro DUB bearings don't have the plastic sleeves to protect the aluminum shaft of the Red AXS crankset.
Full custom paint job would cost a few more weeks of delivery lead time so I went custom font for the logo to save time. I don't know how to judge the quality of welds on this material (nor any other lol). Please leave your comment and school me.
Weight is always an issue here...
Given the heavy frame weight, I decided to go on diet a little bit at seatpost cluster as the items on T1sl Disc are not suitable to the Rikulau. I hope the Cane Creek AER bearings would last a few years given the lighter material used. When I settled on the stem length I'd opt for a Darimo IX4 as well. The Aeronova Team is a keeper as I like the concept of long handlebar reach. It's not heavy for an aero handlebar.
Actual Build to be continued when it's complete next week.
Thanks for reading for now