Here is the ultimate rear suspension kit offered by EBMX

EBMX Custom Swing Arm

Weight:  

• Stock Surron Swing Arm: 2.021kg  
• EBMX Custom Swing Arm: 2.304kg  

Length:  

• Stock Surron Swing Arm: 465mm  
• EBMX Custom Swing Arm: 525mm  

Other Key Features:   

• Reinforced construction, more ridged than the stock swing arm  
• Extra room for larger tires to fit (90/100-18 easily fits, 100/100-18 requires light trimming due to the chain line)  
• The longer swing arm design keeps the front wheel down under hard acceleration and provides better stability at high speeds and when jumping.  
• Bolt together design means you can replace parts and not the whole swing arm if they get damaged.  
• Comes with complete 130L chain 

EBMX Custom Rear Shock And Linkage

Weight:  

• Stock Rear Shock: 1.120kg 
• EBMX Custom Rear Shock: 2.105kg 

Eye to Eye Length: 

• Stock Rear Shock: 267mm 
• EBMX Rear Shock: 277mm 

Stroke Length: 

• Stock Rear Shock: 89mm 
• EBMX Rear Shock: 67mm 

Other Key Features:  

• Plug and play (supplied with bushing kit) with the stock swing arm and linkage (also work very well with the upgraded EBMX Swing arm – size up one spring weight if using the EBMX swing arm as there is more leverage with the longer arms. 
• High speed and low speed compression damping that actually work (unlike the stock shocks…) 
• Rebound adjustment clicker 
• Multiple spring weight options (enquire for your weight and riding style) 
• Designed for a motorbike, not a mountain bike (like the stock shock) 
• Huge oil reservoir keeps the shock cool even under hard riding 
• Less travel but you would never know, this shock is a massive improvement in every way over the stock shocks and any of the mtb shocks you can buy. Extremely strong and good for jumping.