DIY Carbon rim wheelset - BTLOS M-i30AS and ZTTO M1 hub

[borysgo2]

HI
This time I decided to try 29" carbon rims. Bought pair of shallow BTLOS M-i30AS rims. Rims are in enduro version (a bit heavier than XC and AM finish). To make long story short, all the details bellow.

BOM:
-2x BTLOS M-i30AS carbon rims (enduro version)
-set of ZTTO M1 hubs
-60pcs D-light sapim spokes - all 306mm long
-one pack (70pcs) of Newmen MG washers
-60 bras Sapim nipples

At first bit of the math. Rim ERD is 602mm but we have to add 4mm to it (2x MG washer) to make calculations right.

Front wheel.


Rear wheel.



I have ordered all spokes 306mm long. Now the fun part, lacing the wheels.


Lacing straight pull hubs is extremely easy, took about 20 minutes a wheel. Truing process next 30 minutes a wheel.

Final result bellow.


Weight of the ready to go enduro wheels ended up at about 1690 grams.
The costs:
Rims 422Eur
Spokes + nipples 80Eur
MG washers 7Eur
Set of M1 hubs 80Eur

Total 589Eur

The wheelset could be a bit lighter, using aluminium nipples, rims in XC or AM finish could result in about 1500 grams. The weight is not the priority for me. Stronger enduro wheels are more preferable.

I have build similar wheels with Newmen SL30 rims some time ago:

Poor man's DIY wheelset - Newmen A.30 SL + D-light + M1 hubs 1,78kG

HI Before I will assemble my first e-bike frame I will need some wheels. Decided to go ahead with Newmen A.30 SL rims (hookless design) as they suppose to be as strong or even stronger than DT EX511. Gave it a try and I am very happy with the result. BOM: - 2x A.30 SL rims - set of ZTTO M1...

www.emtbforums.com

Now, the question is, is it worth of spending extra money on carbon rims ? Simply I do not know, but I am going to find out.....

First ride in next few days.

Regards
Peter

 

[brbr]

Amazing!
I think I can see it’s the centerlock version, so ratchet version?
I have a 6 bolt with 6 pawl version and one pawl failed after 500km… they sent me a new one under warranty but I have no idea how to lace new wheels!
I’d like to give it a try but the spokes lenght calculation is still not clear for me

 

[borysgo2]

Amazing!
I think I can see it’s the centerlock version, so ratchet version?
I have a 6 bolt with 6 pawl version and one pawl failed after 500km… they sent me a new one under warranty but I have no idea how to lace new wheels!
I’d like to give it a try but the spokes lenght calculation is still not clear for me

Yes, I have used this time ratchet version. Previously with ''alloy build'' wheels I have used 6-bolt pawl version.
M1 hub with pawl's done about 800km no problem. Opened just once after about 500km for inspection, cleaned + regreased.

Spoke calculation is easy - just putt the values into the calculator. Lacing the wheels is easy too, do 7 spokes on one side, swap sides, do another 7 spokes, turn it over do another 7 than turn it over last time and last 7 spokes.

 

[brbr]

Yes, I have used this time ratchet version. Previously with ''alloy build'' wheels I have used 6-bolt pawl version.
M1 hub with pawl's done about 800km no problem. Opened just once after about 500km for inspection, cleaned + regreased.

Spoke calculation is easy - just putt the values into the calculator. Lacing the wheels is easy too, do 7 spokes on one side, swap sides, do another 7 spokes, turn it over do another 7 than turn it over last time and last 7 spokes.

Thanks, I need to buy a stand and give it a try!
Would love to do a 27.5 carbon to switch to mullet