{"product_id":"2019-polygon-helios-replacement-headset-bearings","title":"2019 POLYGON HELIOS REPLACEMENT HEADSET BEARINGS [ ]","description":"\u003cdiv class=\"desc-rd desc-text\" data-mce-fragment=\"1\"\u003eConsists of 2 replacement headset bearings for the existing headset installed on the bike from new purchase\u003c\/div\u003e\n\u003cdiv class=\"desc-rd desc-text\" data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"desc-rd desc-text\" data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"desc-rd desc-text\" data-mce-fragment=\"1\"\u003ePlease select your model from the drop down menu \u003c\/div\u003e\n\u003cdiv class=\"desc-rd desc-text\" data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"desc-rd desc-text\" data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"desc-rd desc-text\" data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eINSTALLATION INSTRUCTIONS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eNaturally every bike is different so there can be slight differences. Start by installing the bike into a workshop stand and prepare the tools required. You will need Allan keys, Paper towel, Degreaser and grease\u003cbr\u003e\u003cbr\u003e1. Start by loosening the pinch bolts on the stem, then remove the top cap \u003cbr\u003e\u003cbr\u003e2. Remove the stem from the fork tube and rest gently \u003cbr\u003e\u003cbr\u003e3. Remove the spacers, compression ring and dust seals, making note of the order as you do. you can thread a cable tie through to keep them in order and stop them from getting lost \u003cbr\u003e\u003cbr\u003e4. The forks should now slide out, If it doesn't a gentle tap will normally free it\u003cbr\u003e\u003cbr\u003e5. Remove the fork, then remove the upper and lower bearings from the cups along with any remaining seals. You can rest the fork in the headtube for the time being. \u003cbr\u003e\u003cbr\u003e6. Spray on some degreaser and clean up the bearing cups and the crown race \u003cbr\u003e\u003cbr\u003e7. Clean the bearings and any other part that is covered in grease \u003cbr\u003e\u003cbr\u003e8. Apply some grease to the bottom bearing race, do not use too much or it will spill onto the frame \u003cbr\u003e\u003cbr\u003e9. Take the new bearings, apply a little grease and place on the crown race of the fork. The bearings have a chamfer on both side, the side it the chamfer on the outside is the side that fits into the frame or the headset cup\u003cbr\u003e\u003cbr\u003e10. Fit the fork back into the headtube of the bike. then grease and replace the top bearing. Making sure the chamfered outside edge goes into the frame \u003cbr\u003e\u003cbr\u003e11. Lift up the fork and hold in place. Return the compression ring and seals onto the top of the bearing \u003cbr\u003e\u003cbr\u003e12. Finally replace all the washers and spacers followed by the stem \u003cbr\u003e\u003cbr\u003e13. Return the top cap and tighten the bolt until it takes up the slack. Its really easy to over tighten this bolt so ensure you give it minimal force or you can damage the bearings. If the bars feel stiff to turn you have over done it. \u003cbr\u003e\u003cbr\u003e14. Take the bike out of the stand and give it a bounce on the ground to ensure everything is seated into place. To make sure the headset is correctly tighten squeeze the front brake and rock the bike back and forth. If you feel any knocking or play it will require further tightening \u003cbr\u003e\u003cbr\u003e15. Align the front wheel with the bars by eye then finally tighten the pinch bolts to the correct torque. These bolts work as a pair so make sure they are evenly tightened \u003cbr\u003e\u003cbr\u003e16. You are now ready to test ride \u003cbr\u003e\u003cbr\u003eTo prolong the life of your bearings, do not direct a high jet of water near areas of your bike where bearings are situated - an ingress of water can lead to premature bearing failure.\u003c\/div\u003e","brand":"The Bike House 1","offers":[{"title":"1 \/ Replacement headset","offer_id":55323220279672,"sku":"[  ]_B844","price":17.99,"currency_code":"GBP","in_stock":true},{"title":"1 \/ Replacement headset \u0026 Lithium grease","offer_id":55323220312440,"sku":"[  ] \u0026 Grease_1ReplacementhB7CB2","price":22.98,"currency_code":"GBP","in_stock":true},{"title":"1 \/ Replacement headset. 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