This page compares Jim’s custom Stealth Fighter to the current F-37 model, including drivetrain differences, suspension, braking, and overall configuration.
John Karambalis, founder of Stealth Electric Bikes came to visit Jim in my home shop.
Comparison Jim’s Fighter to 2016 Model
Jim correspondence to John on install of 2.5:1 Schlumpf bottom bracket drive.
John correspondence to Jim on how well things worked.
The 2.5:1 Schlumpf fit problem
The 2:5:1 Schlumpf fit problem
Bike in the work stand in Jim’s shop.
Cockpit view of Jims fighter
Included with the sale is the cycle Satiator charger currently showing values for 100% charge.
Cycle Analyst showing Full Charge. Placement of Cycle Analyst on handle bar makes easy viewing.
No load top speed of Fighter
Right side view of Fighter
Closer view of Schlumpf drive
Battery compartment showing battery pack in position and secured with foam blocks.
Fighter is No 077, and the plaque was included when I bought the bike.
Fox Float X2 Air shock. Floor pump and hand pump shown in extras are included with the sale.
Rear Magura MT7 hydraulic disk brake. 203 mm Disc rotor on the wheel.
Fron Magura MT7 hydraulic disk brake. 203 mm Disc rotor on the wheel.
Right side overview of fighter.
F and R carbon fenders and custom kickstand added by Jim.
L bottom bracket view
Closer view of Fox rear air shock.
7 speed Shimano rear derailleur
Rear view of bike in stand
Rear view of bike in stand
Front view of bike in stand.
Front view of bike on kickstand.
Front fork is Fox 36
Dealer screenshot of new Fighter price.
Stealth screenshot, current, of Fighter price
Jim Fighter came with derailleur hanger. I added the Schimano 7 speed derailleur and a 7 speed freewheel on the motor. Twist grip shifter is on the left side of the handlebar.
Current F-37 has no derailleur and the Schlumpf drives is 1.65:1.
Dealer screenshot of new Fighter price.
Stealth screenshot, current, of Fighter price