We have to these type of cells in set of 4 to achieve the correct voltage.So, how many of you guys that have purchased speedcells are running the 2.5ah on the street? I really wish they made a 6 cell... >
The 2.5 will work on a street 2015+ R1 just fine, just be conscious of the capacity. It will turn over the R1 just fine, just don't plan on leaving it with the keys/electronics on and sitting.
We do suggest a 5.0 Superbike battery for street use because the extra capacity is nice, but it requires a trim of the battery tray (on the 2015+ R1 only) because Yamaha outlined the OEM battery in plastic to keep it from moving.
The replacement tray to trim (we understand some street users wont want to trim their original) another tray is only ~$10 from Yamaha (2CR-8212C-00-00)
see: Yamaha Motorcycle Parts 2015 YZFR1M - YZFR1MF FENDER Diagram
The 5.0 Superbike battery fits in all 98-2014 Yamaha R1 in stock position without trimming.
Graves, Westby, SBU etc. all use 2.5 to start their R1's
Make sure to see SuperBike Unlimited and ask them about our Model Specific Kit harnesses too! These go straight to the ground on the motor case and straight to the starter relay! Deletes all the cheap wiring from the factory:nerd:
-American made OFC (oxygen free copper) high strand count copper wire,
-Improves current delivery by 27% due to reduced voltage drop.
-Replaces OEM tin & zinc stranded battery leads.
-One time install allows tool less coupling & de-coupling of Speedcell batteries.
-No exposed terminals or wire lead preventing contact shorting & reducing and or eliminating corrosion.
-Used by top professional teams to include YMUS, Graves, Westby, Latus, Yoshimura
Speedcell Legacy 5.0Ah Supersport Battery with Universal Ring Terminal Harness