Picking Between Aero And Also Fixed Wheelsets Is Vital Variable That Affects The Total Performance

Picking Between Aero And Also Fixed Wheelsets Is Vital Variable That Affects The Total Performance
Error
SyntaxError: Unexpected token ÿ in JSON at position 0
   at JSON.parse (<anonymous>)
   at /root/rankerxmobiledoc/index.js:61:55
   at Layer.handle [as handle_request] (/root/rankerxmobiledoc/node_modules/express/lib/router/layer.js:95:5)
   at next (/root/rankerxmobiledoc/node_modules/express/lib/router/route.js:137:13)
   at Route.dispatch (/root/rankerxmobiledoc/node_modules/express/lib/router/route.js:112:3)
   at Layer.handle [as handle_request] (/root/rankerxmobiledoc/node_modules/express/lib/router/layer.js:95:5)
   at /root/rankerxmobiledoc/node_modules/express/lib/router/index.js:281:22
   at Function.process_params (/root/rankerxmobiledoc/node_modules/express/lib/router/index.js:335:12)
   at next (/root/rankerxmobiledoc/node_modules/express/lib/router/index.js:275:10)
   at /root/rankerxmobiledoc/node_modules/body-parser/lib/read.js:130:5