# \[BIP-529\] Enable sFRAX-sfrxETH gauge \[Optimism\]
**URL:** https://forum.balancer.fi/t/bip-529-enable-sfrax-sfrxeth-gauge-optimism/5493
**Category:** BAL Gauges
**Created:** [January 8, 2024, 7:11pm UTC](https://forum.balancer.fi/t/bip-529-enable-sfrax-sfrxeth-gauge-optimism/5493 "2024-01-08T19:11:22Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@jeffrey](https://forum.balancer.fi/u/jeffrey)
#### Post date: [January 8, 2024, 7:11pm UTC](https://forum.balancer.fi/t/bip-529-enable-sfrax-sfrxeth-gauge-optimism/5493/1 "2024-01-08T19:11:22Z")
### PR with Payload
>
>
> \- Enable sFRAX-sfrxETH gauge on OP
> \- Add pool to core pool list
> \- Tenderly-sim…: https://dashboard.tenderly.co/public/safe/safe-apps/simulator/9b54a936-e281-497c-8a46-5bedb4b2607e
**Summary:**
> We request adding sFRAX/sfrxETH weighted pool on optimism to BAL gauge as an uncapped core pool
**References/Useful links:**
> Link to
> • [Website](https://frax.finance/)
> • [Documentation](https://docs.frax.finance/)
> • [Github Page](https://github.com/FraxFinance/frax-solidity)
> • [Communities](https://discord.gg/MTZu6Hf57d)
**Protocol Description:**
> sFRAX is a staked interest bearing version of FRAX stable coin and sfrxETH is a staked interest bearing version of FRAX’s staked ETH (frxETH).
**Motivation:**
> As a joint effort with FRAX and Beethoven X, we aim to increase liquidity of FRAX, sFRAX, frxETH, sfrxETH, to make Balancer a liquidity hub for frax assets on optimism. The BAL gauge and core pool status will facilitate the process.
**Specifications:**
1. **Governance:** FRAX governance process can be seen [here](https://docs.frax.finance/smart-contracts/governance) and their snapshot [here](https://snapshot.org/#/frax.eth).
2. **Oracles:** Rate provider contract for [sfrxETH](https://optimistic.etherscan.io/address/0xf752dd899F87a91370C1C8ac1488Aef6be687505) and for [sFRAX](https://optimistic.etherscan.io/address/0xDe3B7eC86B67B05D312ac8FD935B6F59836F2c41).
3. **Audits:** See [here](https://docs.frax.finance/other/audits)
4. **Centralization vectors:** see [here](https://docs.frax.finance/frax-ether/overview).
5. **Market History:** See [here](https://docs.frax.finance/frax-ether/frxeth-and-sfrxeth)
6. **Value:** Balancer will earn the protocol fee on interest bearing sFRAX and sfrxETH in the pool and so will LPs. The BIP-19 flywheel will incentivize TVL to grow here with trading volume and our staked ethereum pillars will continue to have Balancer as their ideal liquidity destination.
Link to pool: [https://op.beets.fi/pool/0x2feb76966459d7841fa8a7ed0aa4bf574d6111bf00020000000000000000011d](https://op.beets.fi/pool/0x2feb76966459d7841fa8a7ed0aa4bf574d6111bf00020000000000000000011d)
Link to child gauge: [Address: 0x758D3297...aB47e309E | OP Mainnet Etherscan](https://optimistic.etherscan.io/address/0x758D3297d9D9325EFb6DD424a7B2EdCaB47e309E)
Link to root gauge: [Address: 0x8c596E8D...95f799a16 | Etherscan](https://etherscan.io/address/0x8c596E8D1b3Be04a6cAa1B1152b51c495f799a16#code)
**Specification:**
The Balancer Maxi LM Multisig eth:`0xc38c5f97B34E175FFd35407fc91a937300E33860` will interact with the GaugeAdderv4 at `0x5DbAd78818D4c8958EfF2d5b95b28385A22113Cd` and call the addGauge function with the following arguments:
gauge(address):`0x8c596E8D1b3Be04a6cAa1B1152b51c495f799a16`
gaugeType(string): `Optimism`
Additionally, this pool is requesting `core pool` status as per BIP-457
---
### Author:  [@Xeonus](https://forum.balancer.fi/u/Xeonus)
#### Post date: [January 11, 2024, 7:27am UTC](https://forum.balancer.fi/t/bip-529-enable-sfrax-sfrxeth-gauge-optimism/5493/2 "2024-01-11T07:27:49Z")
[https://snapshot.org/#/balancer.eth/proposal/0x69cefa84f3e221d9f85581e3994840f288571de74bd61d3dca2a2c1730e0fd57](https://snapshot.org/#/balancer.eth/proposal/0x69cefa84f3e221d9f85581e3994840f288571de74bd61d3dca2a2c1730e0fd57)