Rolf Dolomite rear hub rebuild question.- Mtbr.com
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  1. #1
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    Rolf Dolomite rear hub rebuild question.

    I have a Rolf Dolomite Disk wheelset in fine shape except..., the rear hub needs to be rebuilt. Can I rebuild the hub with off the shelf parts, or am I sh*t out of luck because the Rolf parts aren't made anymore?

  2. #2
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    The hubs are Formula...I rebuilt several sets in the early 2K's

    My manual I have shows two bearings in the rear hub. They are Trek Part# 73335 which translates into standard 6000 bearings.

  3. #3
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    The hubs should be DT Swiss. That is what Rolf Prima just told me anyway. I know all the upper line Rolf wheels that were distributed through Trek were all based off the Hugi 240 hub.

    My rear hub also needs overhauled, but unlike what mtnbiker72 is saying they are a loose ball rear hub. All the Dolomites I have seen over the years have been a cartridge front hub and a loose ball rear.

    I will be checking with DT Swiss to see if I can find out what cones the rear hub takes. If I find anything I will let you know.

  4. #4
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    Quote Originally Posted by TrekBMX18
    The hubs should be DT Swiss. That is what Rolf Prima just told me anyway. I know all the upper line Rolf wheels that were distributed through Trek were all based off the Hugi 240 hub.

    My rear hub also needs overhauled, but unlike what mtnbiker72 is saying they are a loose ball rear hub. All the Dolomites I have seen over the years have been a cartridge front hub and a loose ball rear.

    I will be checking with DT Swiss to see if I can find out what cones the rear hub takes. If I find anything I will let you know.
    DT Swiss did not make the Dolomite hubs ...so they are talking out of their asses. Here is proof on their own webpage that they have no relation to the Trek made Rolf wheels.

    There were several different hubs used by Trek including the DT based hubs on some of their wheelsets. The top end mountain wheelset was the Propel which used the DT 240 based hub internals. The Urraco was next and used a DT Onyx based hub. The next level down was the Dolomite which used Formula cartridge bearing hubs. The last in line for the mountain wheels was the Satellite which used ball bearing Formula hubs.

    Last edited by mtnbiker72; 02-03-2010 at 02:21 PM.

  5. #5
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    Well I will try to remember to post pictures tomorrow when I am at work. We have 2 sets of Dolomites there right now. That is definitely not the diagram for the hub in the wheel that I am currently working on. I will have to check the hub on the other set we have too.

    They must have switched hubs during some point during production.

  6. #6
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    I was able to get a new cone for my rear hub through trial and error at my LBS. We finally found something that worked perfectly, only it doesn't have a seal like the original. However, I think the outer seal on the hub should work well enough to keep moisture out.

    You may have your best luck by contacting Trek directly. They were able to tell me the model number for freehub body replacements after my shop ran out (my first freehub lasted 10 years, the second, 3 months; the 3rd is in there now; luckily, my shop had 2 laying around for over a decade).

    After I put the 3rd freehub in--thus depleting my LBS' supply--I got worried I wouldn't find another. I contacted Trek, and they told me the model number to give my shop, and they were able to order a couple for me for $15 a piece (see pic).

    Trek told me they have other various parts for the wheels on hand, so they should be able to tell you what you need. Be sure to tell them the exact wheel that you have (i.e. disc/non-disc, wheel model, etc), as well as the year it was made, if possible.

    Part # 68541




  7. #7
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    Quote Originally Posted by GottaGo View Post
    I have a Rolf Dolomite Disk wheelset in fine shape except..., the rear hub needs to be rebuilt. Can I rebuild the hub with off the shelf parts, or am I sh*t out of luck because the Rolf parts aren't made anymore?
    I had the same questions as the OP and found good answers in 2019, so I'm reviving this old thread for posterity...

    These Rolf Dolomite hubs will accept a standard #6000 cartridge wheel bearing.

    The factory freehub is a 1:1 match for a "SRAM v2 X.9 Freehub for 10mm Axles"
    QBP part# FW4551
    OEM part # 11.2015.019.200
    Trek part #68541 (no longer available direct from Trek)

    The freehub body listed above is widely available and drops right into these old Dolomite mountain (& probably Vector road) wheels.

    Additional research has shown that the original hub MFG for this particular wheelset was probably Formula & their exploded diagram (attached below) would seem to verify.. although i cant provide part numbers for Cones and Axles, these parts may still be available as the design seems fairly standardized...

    The exploded diagram depicts my hub assembly pretty accurately. The Rolf hub shells dont match the diagram, but the rest of the assembly is mostly correct for my dolomite wheelset.

    I suspect current model Formula DC-32, DC-38 rear hubs are using the exact same axle today, as the Dolomite wheelset. I suspect the same may also be true for the front hub models DC-140, DC-91. Not sure where to source these hubs, or spare parts, but they are advertised on the formula website here https://www.formulahubs.com/product.php?t=3

    Also attached is a screenshot from the QBP website with details on the freehub that fits these wheels... (requires a long 11mm Allen Key)


    Rolf Dolomite rear hub rebuild question.-formula-freehub.jpg


    Rolf Dolomite rear hub rebuild question.-sram-v2-freehub-body-x.9-10mm-axle-qbp-fw4551.jpg

    Not exactly certain what year my wheels are, but they are definitely pre-2003 & from the trek/klein/rolf era.. More specifically, my hub shells have a silk screened "Rolf" logo with "sealed cartridge" sub-text (not a sticker), slotted spoke holes on the drive side flange, & the rims are marked as Dolomite, plus 2 small "TUBELESS Ready" & "Paired Spoke Technology" stickers.

    The only caveat with the Sram freehub.. I had to re-use my original drive side freehub dust cap, as the newer sram one would not seal around my drive side cones. The OEM cap fit perfectly in the new freehub.

    Last thing, before I found a viable replacement for this free-hub, I planned on just rebuilding it, but I needed a spanner tool to disassemble... Just so happens, my race face bottom bracket tool was exactly the right width for the slotted nut on the freehub.. so I made my own tool, as below...
    Rolf Dolomite rear hub rebuild question.-1.jpg

    Rolf Dolomite rear hub rebuild question.-2.jpg

    Rolf Dolomite rear hub rebuild question.-3.jpg

    Rolf Dolomite rear hub rebuild question.-4.jpg

    Rolf Dolomite rear hub rebuild question.-5.jpg

    Rolf Dolomite rear hub rebuild question.-6.jpg

    The lockring is reverse thread, so rightey loosey.. just insert a screwdriver, push down and twist!. The freehub rebuild went well, but since i was able to find a new replacement, I installed that instead and am keeping the re-built OEM freehub as a spare.

    Hope someone finds this useful... Enjoy
    Attached Thumbnails Attached Thumbnails Rolf Dolomite rear hub rebuild question.-dolomite-vector-rebuilds.jpg  

    Last edited by deroguy; 2 Weeks Ago at 08:45 AM.

  8. #8
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    2002 TREK Wheels Manual

    I spoke with TREK last week and was forwarded the 2002 manual for wheels......I can't post the PDF here.....but I have it if someone wants me to send it to them....

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