Trek rail bearing replacement

Redders473

Redders473

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Hi all anyone replace the bearings on their rail. Mines a 2020 rail 7 and there's play developing in the back end can't quite work out where it is.

Also how the fu@k do you get mino link bolts out mine will not come out so i can't check of it's coming from there or main pivot.
 
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Replaced mine recently, the wear on mine was from the main pivot bearing.
The mino link bolts just pull out, there is nothing holding them
 
I thought that might be the case can you remember what size bearing it was only really need to replace that one
 
Redders473 said:
I thought that might be the case can you remember what size bearing it was only really need to replace that one
Click to expand...
3803-W
It's the 10mm wide one.

20210225_162200.jpg
 
Turns out you need to remove crank to press them bearings in. This just turned into an epic ?
 
Redders473 said:
Turns out you need to remove crank to press them bearings in. This just turned into an epic ?
Click to expand...
Yes you do have to remove the chainring ☹
I've had 3000 trouble free miles on mine, but after removing the chainring noticed it keeps coming loose now.
Used lock tight and more torque, so hope it stays put now.
Would cause untold damage if it came off ?
 
I'm going to do mine soon, where did you get the bearings?
 
For the full set or just the main pivot bearings?
 
Redders473 said:
Hi all anyone replace the bearings on their rail. Mines a 2020 rail 7 and there's play developing in the back end can't quite work out where it is.

Also how the fu@k do you get mino link bolts out mine will not come out so i can't check of it's coming from there or main pivot.
Click to expand...
Hi. How you solve problem with mino link bolts. Mine not come out also.
 
iscander13 said:
Hi. How you solve problem with mino link bolts. Mine not come out also.
Click to expand...
They just unscrew, if they are not moving they must be seized.
Spray with wd40 and leave over night and try again.
 
Paul Mac said:
They just unscrew, if they are not moving they must be seized.
Spray with wd40 and leave over night and try again.
Click to expand...
Thank you. I will try with wd40. it looks like the bolt is firmly seated in the bearing. Both.
 
Marksou said:
This video was for a Rail 9, but I think it’s the same process
Click to expand...
thanks for posting the Video when i stripped my main pvot the bolt had a lot of wear for bike thats kust done 2000km . So the parts kit from Trek for £44 is by far the best value option as it contains a new bolt,nut spacer and the 2 bearing required . part number is in the video. Thanks Again
 
Asnowmobiler said:
My local deal just got two in, he said he had a hard time getting them, had to reach to corporate.
Thanks for the reply.
Click to expand...

They are not in stock at all warehouses, so they may have had to order it from across the country - a challenge if they've never done that before.
 
t0mmo999 said:
Did you use a press tool to remove and reinstall these? If so, which one?
Click to expand...
I've recently replaced all the frame bearings on my Rail. I got all the extractors and presses from Jim at BearingProTools. Really helpful with any questions etc, tools are well priced. I have a couple of the RRP tools as well, but found the BearingPro kit more useful, especially on the lower shock mount bearings where the RRP kit fouls on the frame and prevents you getting the bearing out straight. Also the RRP kit is no good on the main pivot, because you can't get in behind the bearing.
Can provide details of the exact kits I used if you're interested
www.bearingprotools.com

Bearing Pullers and Presses for Bicycles - BearingProTools.com

BearingProTools manufacture specialist bike tools for the professional and home mechanic. We have a wide range of blind bearing pullers, presses and other tools for mountain bike and road bike hubs, wheels, bottom bracket and frame pivots. We offer fast and free shipping in the UK and express...
www.bearingprotools.com
 
Philly G said:
I've recently replaced all the frame bearings on my Rail. I got all the extractors and presses from Jim at BearingProTools. Really helpful with any questions etc, tools are well priced. I have a couple of the RRP tools as well, but found the BearingPro kit more useful, especially on the lower shock mount bearings where the RRP kit fouls on the frame and prevents you getting the bearing out straight. Also the RRP kit is no good on the main pivot, because you can't get in behind the bearing.
Can provide details of the exact kits I used if you're interested
www.bearingprotools.com

Bearing Pullers and Presses for Bicycles - BearingProTools.com

BearingProTools manufacture specialist bike tools for the professional and home mechanic. We have a wide range of blind bearing pullers, presses and other tools for mountain bike and road bike hubs, wheels, bottom bracket and frame pivots. We offer fast and free shipping in the UK and express...
www.bearingprotools.com
Click to expand...

I like the idea of winding the bearings out over tapping them out (due to lack of having a workshop type environment at home!)

If you could advise exactly which ones you used to remove and replace the main pivot bearing, that'd be grand, cheers 👍🏼

The RRP system looks very neat, but only if you can get decent access to each bearing I guess.
 
Paul Mac said:
www.ebay.co.uk

Bicycle Bearing Press Set Bike Assembly Kit for Wheels Hub Bearing Installation | eBay UK

Lightweight well- machined anodized aluminum alloy bicycle bearing press kit which clearly labeled for each bearing size you needed. Applicable scope: flower-drum,column foot,middle axle etc. 1 Set Bearing Install Tools with Carring Case.
www.ebay.co.uk
Click to expand...
You can just use a threaded bar with some nuts, then use the old bearings as the drifts to push the new ones in.
For ease though and the fact I've done it a few times now I bought the above press kit which is excellent for the money, and can do all the bearings on the bike.
Unfortunately the bearings are blind, so you will have to drift them out. Don't be afraid to do this, they come out quite easily.
 
t0mmo999 said:
I like the idea of winding the bearings out over tapping them out (due to lack of having a workshop type environment at home!)
Click to expand...
The wind-out extractors are a new addition and weren't available when I bought my tools.
The only place you'll be able to use those however is on the rocker / seatstay pivot, the rocker/upper shock mount and possibly the lower shock mount too. The same tool will do all of these bearings, since they all have the same ID & OD, only difference is the width . (Rocker/seatstay is 3800 10x19x8, upper & lower shock mount are 6800 10x19x5)
So simply select 3800 from the drop down menu Bearing Puller (Wind-Out Type)
And do the same for the press drifts
Bearing Press for Bicycles (drifts only)
The rocker main pivot (3801 12x21x8) and the main pivot (chainstay - 3803 17x26x10) are both blind so you will need this puller
www.bearingprotools.com

Tap-Out Blind Bearing Puller for Bikes

Buy one, get one 30% off any mix of individual presses and pullers! Bearing press and puller tools for mountain bike and road bike hubs, wheels, bottom brackets and MTB frame pivots. Fast and free shipping in the UK, low cost international shipping
www.bearingprotools.com
It's a modified dynabolt that grips the inner race, so when you tap it from behind with the drift it will come out straight and not damage the frame.
The handles are just 8mm threaded rod so either make your own or buy theirs.
Hope this helps
 
Hello,
Do the shock bearings need to press inward or outward for removal?

Cheers,
 
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