- Gradual gear progression between cogs - at least five one-tooth jumps on 10-28T, 10-30T and 10-33T cassettes — while still offering a wider range
 - Provides secure shift ramps specifically designed for electronic shifting, whether racing road on a 10-28T or creating an all-road setup with a 10-36T
 - One-piece machined steel X-DOME design for weight savings
 - 10-30T and 10-36T options available in RED for the first time
 - Designed for smooth and fast shifting even under pressure
 - 10-tooth start helps provide a wider gearing range
 - FH CASS SRAM XG1290 E1 10-28 12s XDR SL
 
SRAM XG-1290 E1 Silver 10-28t, Silver
SRAM
        
            
        
        
        $430.00
    
         
            - SKU:
 - JB180277
 - UPC:
 - 710845898310
 - Maximum Purchase:
 - 45 units