RC-Cars Spare Parts E2115 Lower Arm Shaft. MBX-7/7R/MBX-8/MBX-8T ECO Watch this product and we will notify you once it is back in stock. The product is now watched We will notify you once the product is back in stock again. E-mail Watch this product Your personal information is processed in accordance with our privacy policy. E2115 Lower Arm Shaft. MBX-7/7R/MBX-8/MBX-8T ECO E2115 Front Lower Arm Shaft. MBX-7/7R/MGT7/MBX-8/MBX-8T ECO Share Reviews Product review Based on 0 ratings. Click on a star to rate 1 star 2 stars 3 stars 4 stars 5 stars You Click on a star to rate Retrieve your Facebook profile. Be the first to leave a review.