Praxis
Praxis - MTB E-Ring Steel 104 BCD 1x NW
Praxis - MTB E-Ring Steel 104 BCD 1x NW
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PRAXIS - MTB E-RING STEEL 104 BCD 1X NARROW WIDE
Cold forged from 4130 high-grade steel, our MTN E-Rings are designed specifically for e-MTN and longer wear.
THREADED - These MTN E-Rings are ‘female‘ threaded for an M8 chain ring bolt. The M8 CR bolt threads directly into the 104BCD ring for better motor clearance.
PRODUCT: 1X STEEL MTN E-RING | 104 Bolt Circle Diameter | Threaded
BUY THIS IF: You want to change gearing/refresh the ring on your 104BCD E-MTN Spider. Please make sure your spider is 104BCD and NOT the smaller 94BCD
DESIGN/STYLE: NARROW / WIDE TOOTH - E-Rings are ‘female‘ threaded for installation with a regular M8 male bolt for better motor clearance. Please see all photos above.
MFG: Cold Forged | Case hardened high grade steel | Black Oxide finish
GEARING: 32T / 34T / 36T
AVG. WEIGHT: 32T = 98g (Ref size & weight)
CHAIN: Shimano / SRAM / KMC - 10 / 11 /12sp Compatible
DRIVETRAIN: SHIMANO -Compatible with both mechanical and Di2 Shimano 10/11/12sp. / SRAM -Compatible with both mechanical and Wireless SRAM 10/11/12sp.
NOTE!
- Must use a ‘CLUTCH’ type rear derailleur. Ex: Shimano Shadow or SRAM Type2 - GUIDE –In rough terrain, or just for pure security, we still recommend use of an upper guide
- THREADED - These MTN E-Rings are ‘female‘ threaded for an M8 chain ring bolt. The M8 CR bolt threads directly into the 104BCD ring for better motor clearance. SEE PICTURE
- MOUNTING – LOGOS ALWAYS FACE OUTWARD! SEE PICTURE
Shipping
Shipping
Click & Collect – Free
Order online & collect at our Onehunga store.
NZ Shipping Costs
- General Items: $10/item
- Bikes & Frames: $120 (North Island) / $199 (South Island)
- Large/Bulky Items: $30 (North Island) / $60 (South Island)
- Helmets: $20 (North Island) / $25 (South Island)
Rural: Extra fee applies — select “Rural Delivery” at checkout.
International Orders – Contact info@rouleurcycles.co.nz for a quote.
Bike Shipping
- Fully assembled, tuned & safety‑checked before dispatch.
- Carefully boxed (minimal reassembly required).
- Recommend mechanic check before first ride.
Timeframes
- General: 3–5 working days (+1–2 for rural)
- Bikes: 5–7 working days (up to 10 remote) + prep time for build/boxing
- Delays may occur during holidays or courier disruptions.
Tracking & Issues
- Tracking emailed once dispatched.
- Contact the courier first for delays. Need help? Email or call us.
- Report damaged/lost parcels within 3 days.
No PO Boxes – Physical addresses only.
Why Buy From Rouleur?
Why Buy From Rouleur?
Trusted NZ Bike Experts – Locally owned & operated with years of experience helping Kiwi riders get the most out of their bikes.
Custom Builds & Personal Fitting – From road to e‑bikes, we tailor every build to your riding style and goals.
Fast, Reliable Shipping – In‑store stock ships next business day. Supplier stock delivered in as little as 3–5 days.
After‑Sales Support That Rides With You – From servicing to upgrades, our workshop team is here for the long haul.
