The chainring spider with a 104 mm bolt circle diameter is suitable for E-MTB's with 4th generation Bosch drivetrains and Shimano or SRAM 1x12-speed shifting systems. The surface of forged aluminium 6061 has been treated by fine glass bead blasting and features a black anodized finish.
The W0151 version of the FSA Spider is tuned for a 53 mm Boost chainline.
Weight: approx. 65.5 grams (manufacturer's specs)
| Product name: | FSA E-Bike Spider for Bosch Gen 4 - 1x12-speed - Boost - W0152 | 
| Manufacturer: | FSA | 
| Item code: | FSA531353 | 
| Activity: | Cycling | 
| Material: | Aluminium | 
| Usage bikesport: | E-Bike, MTB | 
| Shifting system: | 12-speed | 
| Mtb - bolt circle diameter: | 104mm | 
| Chainring mount: | 1-speed | 
| Crank accessories & spare parts: | Spider | 
| Crank special features: | E-bike, Boost (+ 3mm) | 
| Model year: | 2021 | 
| Color: | Black | 
| Weight: | 66g | 
| Manufacturer item code: | 38000447000050 | 
| Manufacturer page: | http://www.fullspeedahead.com/ |